NASA/TP–2015-218755

ENGINEERING DRAWING PRACTICES

VOLUME I OF II

AEROSPACE AND GROUND SUPPORT EQUIPMENT

Paul Schwindt

NASA/Kennedy Space Center

Kennedy Space Center, FL

May 2015
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The Program Office is also NASA’s institutional 

mechanism for disseminating the results of its 

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are published by NASA in the NASA STI Report 

Series, which includes the following report types:

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of research that present the results of NASA 

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• TECHNICAL MEMORANDUM. Scientific 

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NASA/TP–2015-218755

ENGINEERING DRAWING PRACTICES

VOLUME I OF II

AEROSPACE AND GROUND SUPPORT EQUIPMENT

Paul Schwindt

NASA/Kennedy Space Center

Kennedy Space Center, FL

May 2015

National Aeronautics and

Space Administration

Kennedy Space Center

Kennedy Space Center, FL 32899
KSC-GP-435, Volume I

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National Aeronautics and 

Space Administration

John F. Kennedy Space Center

KSC FORM 16-12 (REV. 6/95) PREVIOUS EDITIONS ARE OBSOLETE (CG 11/95)

NOT MEASUREMENTSENSITIVE

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ENGINEERING DRAWING PRACTICES

VOLUME I OF II

AEROSPACE AND GROUND SUPPORT EQUIPMENT 

APRIL 18, 2014

ENGINEERING DIRECTORATE


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RECORD OF REVISIONS

REV

LTR

CHANGE

NO. DESCRIPTION DATE

Initial issue August 1, 1973

A General revision December 18, 1978

A-1 Changed revision 18, Interface Control Documents July 2, 1979

A-2

Changed paragraph 10.5.3.1(f);

Changed Section 16, Reference Designations.

October 31, 1980

B General revision May 31, 1984

B-1 Changed paragraph 10.6.5.4. January 9, 1987

C General revision March 5, 1991

C-1

Miscellaneous changes to Sections I, II, III, IV, VII, 

and IX March 30, 1992

D Revised to incorporate the metric system. March 1, 1993

E

Revised to incorporate minor miscellaneous 

changes to all sections.

June 2, 1997

E-1 Changed paragraphs 9.2.1.3 and 9.2.1.4. December 3, 1997

E-2

Change Notice to make pen-and-ink change to page 

9-5, paragraph 9.2.1.3 (blocks).

September 11, 1998

E-3

Change Notice to make pen-and-ink change to page 

9-2, paragraph 9.2.1.3 (block 1).

March 23, 1999

E-4

Change notice to make pen-and-ink changes

to page 8-1, paragraphs 8.2 and 8.3.

July 2, 1999

F

General revision to incorporate changes E-1 through

E-4, update references, drawing format changes, 

drafting practices, drawing and part identification.

February 28, 2001

F-1

Changed figures 2-1, 2-2, 2-3, 2-17, 3-1, and 9-3; 

Table 3-1; and paragraphs 3.6, 9.2.1.1, 9.2.1.2, 

9.4.3.1, and 9.4.4 for clarification.

August 24, 2001

G

General revision to replace all previous revisions and 

changes. April 18, 2014

G-1

Updated signature authority. Updated applicable 

documents and revision levels throughout. Removed 

reference to obtaining hard copies from Foreword. 

Added section 1.2.1.2, Drawings, to accommodate 

format of reference. Added requirement to provide 

drawing media as digital data in 2.2.a. Stated

applicable appendices of ASME Y14.35-2014 in 

March 26, 2015
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RECORD OF REVISIONS

REV

LTR

CHANGE

NO. DESCRIPTION DATE

2.2.s. Added lettering height requirements in 2.3.d, 

2.4.d, and 2.5.d. Specified note/reference to be 

placed on drawings in 2.3.e. Simplified Figure 5.
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FOREWORD

The Kennedy Space Center (KSC) Engineering Drawing Practices, Volume I of II, 

Aerospace and Ground Support Equipment, is the official source for the requirements 

and interpretations to be used in the development and presentation of engineering 

drawings and related documentation for the KSC.

The Engineering Directorate has been delegated the responsibility for interpretation, 

periodic updates, and distribution of the Engineering Drawing Practices, Volume I of II, 

Aerospace and Ground Support Equipment.

KSC Engineering Directorate design organizations and their contractors shall adhere to 

the requirements of this manual when preparing KSC engineering documentation.

Requests for information or for making corrections or additions to this manual should be 

directed to the Engineering Directorate, Kennedy Space Center, Florida 32899. 
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CONTENTS

1. INTRODUCTION .............................................................................................1

1.1 Scope..................................................................................................................2

1.2 Applicable Documents.......................................................................................2

1.2.1 Governmental.....................................................................................................2

1.2.1.1 Standards............................................................................................................2

1.2.1.2 Drawings............................................................................................................2

1.2.1.3 Publications........................................................................................................3

1.2.2 Non-Governmental ............................................................................................3

1.3 Definitions..........................................................................................................5

2. GENERAL PRACTICES ..................................................................................5

2.1 General...............................................................................................................5

2.2 ASME Y14.100-2013 Tailoring ........................................................................6

2.3 Drawing Elements..............................................................................................7

2.4 Single, Multiple, and Sectional View Drawings................................................7

2.5 Graphic Symbols, Designations, Letter Symbols, and Abbreviations...............8

2.6 Types and Application of Drawings..................................................................8

2.6.1 Electrical/Electronic Diagrams (ASME Y14.24-2012, Sec. 12) .......................8

2.6.1.1 System Block Diagram or Functional Block Diagram ......................................8

2.6.1.2 Advanced Electrical Schematic (AES)..............................................................9

2.6.1.3 Elementary Electrical Schematic (EES) ............................................................9

2.6.1.4 Ground Integrated Schematic (GIS) ..................................................................9

2.6.1.5 Electrical Power Riser Diagram (United States National CAD 

Standard – V5, Sheet Type 6)............................................................................9

2.6.1.6 Electrical Panel Schedule (United States National CAD Standard – V5, 

Sheet Type 6).....................................................................................................9

2.6.2 Space and Weight Allocation Drawing (ASME Y14.24-2012, Sec. 7)...........10

2.6.3 Sketch...............................................................................................................10

2.7 Tags and Plates ................................................................................................10

3. DIGITAL PRODUCT DATA FORMAT........................................................10

3.1 Title Block .......................................................................................................10

3.2 Security Classification and Notation ...............................................................10

3.3 Notice...............................................................................................................11

4. REVISION AUTHORIZATION DOCUMENT .............................................11

4.1 Change Methods ..............................................................................................11

4.1.1 Changes by EO ................................................................................................11

4.1.2 Revisions of Engineering Drawings and Associated Lists..............................12
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APPENDIX A. NONMANDATORY SYMBOLS...................................................................13

APPENDIX B. NONMANDATORY REFERENCE...............................................................15

FIGURES

Figure 1. Sheet/Zone Locator Symbol...........................................................................................13

Figure 2. Flag Note Symbol...........................................................................................................13

Figure 3. Find Number/Quantity Symbol ......................................................................................13

Figure 4. View Title.......................................................................................................................13

Figure 5. Continuation Symbol......................................................................................................14

Figure 6. Alternate Continuation Symbol......................................................................................14

Figure 7. Part Marking Symbol .....................................................................................................14

Figure 8. Mechanical Find Number/Reference Designator Symbol..............................................14

Figure 9. Electrical Reference Designator Symbol........................................................................14
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ABBREVIATIONS, ACRONYMS, AND SYMBOLS

AES advanced electrical schematic

ASME American Society of Mechanical Engineers

CADD computer-aided design and drafting

CAE computer-aided engineering

CAGE Commercial and Government Entity

DOD Department of Defense

EES elementary electrical schematic

EO Engineering Order

GIS ground integrated schematic

GS Ground Systems

ISO International Organization for Standardization

KSC John F. Kennedy Space Center

NASA National Aeronautics and Space Administration

NPR NASA Procedural Requirement

PIN Part Identification Number

STD standard

TM technical memorandum
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ENGINEERING DRAWING PRACTICES

1. INTRODUCTION

KSC-GP-435, Engineering Drawing Practices, Volume I of II, Aerospace and Ground Support 

Equipment, establishes the conventions to be adhered to by engineering and drafting personnel in 

the preparation, revision, and completion of engineering digital product definition data sets. This 

manual sets forth the minimum requirements acceptable at Kennedy Space Center (KSC) for the 

preparation of model-only, model and dependent drawing, and drawing-only digital product 

definition data sets based on the engineering drawing and model requirements in the ASME Y14 

series. 

The engineering drawings prepared by KSC design personnel or contractors in the KSC drawing 

format using KSC drawing numbers shall be known as government design activity drawings.

Although generally in accordance with industry practices and procedures, this manual does 

contain specific differences and exceptions. This manual, while not intended as a manual of 

instruction in the basic principles of drafting, does set forth the minimum requirements 

acceptable at KSC. One of those requirements is that persons engaged in the preparation of 

digital product definition data sets shall have a thorough understanding of the fundamentals of 

modeling, drafting and geometrical dimensioning and tolerancing in order to produce 

interpretable product definition data sets. 

The widely accepted use of computer-aided design and drafting (CADD) and computer-aided 

engineering (CAE) software and numerous packages thereof has necessitated the abandonment 

of legacy manual drafting practices so long maintained by this manual at KSC. Typically 

resulting from the use of these various CADD and CAE software packages is the existence of 

software-package-provided or internally generated supplemental documents, such as design 

manuals, computer-generated modeling manuals, and drawing manuals, that comply with 

industry standards and may further define and standardize the creation of consistent digital 

product definition data sets within the respective companies and organizations where they are 

used.

The expectation now rests within the various companies or organizations producing government 

design activity drawings to provide consistent product definition data sets that comply with the 

industry standards discussed in this document. Clarifications of the industry standards and 

additional requirements in this manual are specific to the KSC needs and are assumed CADDsoftware-independent and not to cause undue burden or customization of CADD software. 

Tailoring is permitted where unique contractor practices meet the intent of this standard. 

Approval of tailoring is the responsibility of the lead discipline engineer for this manual as 

identified in KSC-PLN-5400_LDE-LIST. 
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1.1 Scope

This manual establishes the essential requirements and reference documents for the preparation 

and revision of digital product definition data sets prepared for or by NASA at KSC. This 

volume is only applicable to KSC in-house programs/projects. These requirements do not apply 

to the preparation of illustrations, artwork, or figures in technical publications. 

1.2 Applicable Documents

The following documents form a part of this document to the extent specified herein. When this 

document is used for procurement, including solicitations, or is added to an existing contract, the 

specific revision levels, amendments, and approval dates of said documents shall be specified in 

an attachment to the Solicitation/Statement of Work/Contract.

1.2.1 Governmental

National Aeronautics and Space Administration (NASA)

NASA-STD-(I)-0007 NASA Computer-Aided Design Interoperability

NPR 1600.1 NASA Security Program Procedural Requirements

NPR 2190.1 NASA Export Control Program

1.2.1.1 Standards

John F. Kennedy Space Center, NASA

KSC-DE-512-SM, Rev. L Facility Systems, Ground Support Systems, and Ground Support 

Equipment General Design Requirements

KSC-PLN-5400_LDE-LIST Lead Discipline Engineers for KSC Specifications and Standards

KSC-STD-152-2 Graphic Symbols for Drawings, Part 2: Ground Support 

Equipment, Standard for

1.2.1.2 Drawings

John F. Kennedy Space Center, NASA

75M50393 Identification Plate, Ground Support Equipment, Kennedy Space Center
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1.2.1.3 Publications

Military

DOD 5220.22-M National Industrial Security Program Operating Manual

(Copies of specifications, standards, drawings, and publications required by suppliers in 

connection with specified procurement functions should be obtained from the procuring activity 

or as directed by the contracting officer.)

1.2.2 Non-Governmental

American National Standards Institute

ANSI Y14.7.1-1971 Gear Drawing Standards – for Spur, Helical, Double Helical and 

Rack

ANSI Y14.7.2-1978 Gear and Spline Drawing Standards Part 2 – Bevel and Hypoid 

Gears

American Society of Mechanical Engineers (ASME)

ASME B46.1-2009 Surface Texture (Surface Roughness, Waviness, and Lay)

ASME Y14.1-2012 Decimal Inch Drawing Sheet Size and Format

ASME Y14.1M-2012 Metric Drawing Sheet Size and Format

ASME Y14.2-2014 Line Conventions and Lettering

ASME Y14.3-2012 Orthographic and Pictorial Views

ASME Y14.5-2009 Dimensioning and Tolerancing

ASME Y14.6-2001 Screw Thread Representation

ASME Y14.8-2009 Castings, Forgings, and Molded Parts

ASME Y14.24-2012 Types and Applications of Engineering Drawings

ASME Y14.34-2013 Associated Lists

ASME Y14.35-2014 Revision of Engineering Drawings and Associated Drawings

ASME Y14.38-2007 Abbreviations and Acronyms for Use on Drawings and Related 

Documents
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ASME Y14.41-2012 Digital Product Definition Data Practices

ASME Y14.44-2008 Reference Designations for Electrical and Electronics Parts and 

Equipment

ASME Y14.100-2013 Engineering Drawing Practices

American Welding Society

AWS A2.4:2012 Standard Symbols for Welding, Brazing, and Nondestructive 

Examination

AWS A3.0M/A3.0:2010 Standard Welding Terms and Definitions; Including Terms for 

Adhesive Bonding, Brazing, Soldering, Thermal Cutting, and 

Thermal Spraying

Institute of Electrical and Electronics Engineers, Inc. (IEEE)

IEEE/ASTM SI 10-2010 American National Standard for Metric Practice

International Standards Organization (ISO)

ISO 14617-1 Graphical symbols for diagrams - Part 1: General information and indexes

ISO 14617-2 Graphical symbols for diagrams - Part 2: Symbols having general application

ISO 14617-3 Graphical symbols for diagrams - Part 3: Connections and related devices

ISO 14617-4 Graphical symbols for diagrams - Part 4: Actuators and related devices

ISO 14617-5 Graphical symbols for diagrams - Part 5: Measurement and control devices

ISO 14617-6 Graphical symbols for diagrams - Part 6: Measurement and control functions

ISO 14617-7 Graphical symbols for diagrams - Part 7: Basic mechanical components

ISO 14617-8 Graphical symbols for diagrams - Part 8: Valves and dampers – First edition

ISO 14617-9 Graphical symbols for diagrams - Part 9: Pumps, compressors and fans – First 

edition

ISO 14617-10 Graphical symbols for diagrams - Part 10: Fluid power converters – First edition

ISO 14617-11 Graphical symbols for diagrams - Part 11: Devices for heat transfer and heat 

engines – First edition
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ISO 14617-12 Graphical symbols for diagrams - Part 12: Devices for separating, purification and 

mixing – First edition

National Institute of Building Sciences

United States National CAD Standard – V5

1.3 Definitions

For the purpose of this document, the following definitions apply.

design activity: an organization that has responsibility for the design of an item or system. The 

activity may be a government entity, contractor, vendor, or other organization such as a 

university.

graphic symbol: a representation of a physical component used in diagrams such as overview 

diagrams, flow diagrams, and circuit diagrams.

maintained drawing: a drawing that contains design data that must be kept up to date in order 

to meet an operational need.

“shall”: an emphatic form of the verb that is used whenever a requirement is intended to express 

a provision that is binding and mandatory.

“should”: an expression of strong recommendation of a nonmandatory provision.

symbology: drawing symbols that convey information for the interpretation of markings on 

drawings. 

2. GENERAL PRACTICES

2.1 General

The preparation and revision of KSC engineering drawings and associated lists shall be in 

accordance with ASME Y14.100-2013 unless otherwise stated or refined in the following 

sections. The preparation and revision of digital product definition data shall be in accordance 

with ASME Y14.41-2012 and NASA-STD-(I)-0007 unless otherwise stated or refined in the 

following sections. References to electrical and electronic parts shall be in accordance with 

ASME Y14.44-2008 unless otherwise stated or refined in the following sections.
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2.2 ASME Y14.100-2013 Tailoring 

The drawing requirements defined by ASME Y14.100-2013 have been tailored for this manual 

as follows. Contractor’s option implies that the choice of options to follow in ASME Y14.100-

2013 is the contractor’s decision and does not imply that the contractor has the option to not 

follow the ASME Y14.100-2013 standard.

a. Drawing media shall be produced and provided as digital data. (The order of preference

for drawing media is as follows: native file; STEP AP214, AP214IS, or AP214DIS; DXF 

file; and PDF file.)

b. Drawing format shall be Government (forms supplied by the contractor or by the 

Government).

c. Drawing sheet sizes shall be in accordance with ASME Y14.1-2012.

d. Application data shall be provided per the contractor’s option, and general use or multiuse application data is allowed.

e. Drawing detail shall be produced as monodetail, multidetail, or tabulated. Drawing detail 

may be produced as a detailed assembly drawing to preserve legacy types, and drawing 

types should be combined only if this will result in a significant advantage over using 

separate drawings of a single type.

f. Dimensioning and tolerancing shall be in accordance with ASME Y14.5-2009.

g. Drawing notes shall be provided as a separate document by reference (native files are 

preferred over PDF files) or on the drawing.

h. Types of drawings (ASME Y14.24-2012) shall be the contractor’s option.

i. Multisheet drawings shall be maintained such that all sheets are at same revision level 

(the preferred method) or at the drawing revision level.

j. In a redrawn drawing (a redrawing without a change), the revision level shall be 

advanced.

k. The revision history shall be maintained in accordance with one of the following

methods: remove one or more revision records as required, remove all previous revision 

history, remove all details in the revision history but retain the line entry for revision 

authorization and date of revision, remove all revision history except that for the revision 

preceding the current one, or maintain the revision history in its entirety.

l. When sheets are added, the drawing shall be renumbered using consecutive whole 

numbers or an alphanumeric sequence.
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m. The method for deleting sheets (ASME Y14.35-2014) shall be the contractor’s option.

n. Marking on engineering drawings shall include applicable symbols and notes for special 

items and processes.

o. Associated lists shall be provided as digital data. (Native files are preferred over PDF 

files.)

p. Types of associated lists shall include a parts list per the contractor’s option, an 

application list, data list, index list, indentured data list, and wire list.

q. Third-angle projection shall be used in drawings.

r. The English language shall be used in drawings.

s. Drawings shall be titled in accordance with Appendix C of ASME Y14.100-2013, with 

changes requiring a new Part or Identifying Number (PIN) identified as specified in 

Appendix D, section D-13. Materials, processes, and protective treatment shall be 

identified as specified in Appendix D, section D-14.

2.3 Drawing Elements

a. The CAD model driving drawing views and annotations shall be identified by filename,

extension, and as appropriate, software application on government design activity 

drawings.

b. All components on an assembly or installation drawing shall be identified on the field of 

the drawing.

c. Symbology used on government design activity drawings that is not defined in 

accordance with ASME Y14.100-2013 or in Appendix A, Nonmandatory Symbols, of 

this document shall be shown in a legend located on the drawing sheet where the drawing 

symbol is used or in a legend located on the first page of the drawing. 

d. Lettering height may be reduced to 1/16 inch (1.5 mm) for A- and B-size drawings.

e. Drawings or data sets based on this standard should contain a note or reference as 

follows: THIS DRAWING SHALL BE INTERPRETED IN ACCORDANCE WITH 

ASME Y14.100-2013.

2.4 Single, Multiple, and Sectional View Drawings 

a. Cross-reference zoning shall be used on drawings to indicate the location of an indicated 

section, view, or detail and to refer back to the viewing location for that section, view, or 

detail. 
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b. Views located on different sheets of drawings shall include the sheet number as well as 

the zone.

c. An identifying letter shall only be used for one section, view, or detail on the same 

drawing (e.g., if section A exists, there shall be no view A or detail A).

d. The height of the lettering used for view, detail, and section identification may be 

reduced to 3/32 inch (2.5 mm) on A- and B-size drawings.

2.5 Graphic Symbols, Designations, Letter Symbols, and Abbreviations

Graphic symbols shall be in accordance with ASME Y14.100-2013. Additional requirements 

are as follows.

a. Mechanical and piping and fluid power graphic symbols shall be done in accordance with 

ISO 14617-1 through 14617-12, as applicable.

b. KSC-unique graphic symbols not defined in this manual shall be in accordance with 

KSC-STD-152-2.

c. Graphic symbols, designations, letter symbols, and abbreviations not covered by the 

standards referenced in this manual may be used provided they are explained on each 

drawing or referenced to an explanatory document.

d. Graphic symbols and inclusive lettering for A- and B-size drawings may be reduced to 

half-size, i.e., a minimum letter height of 1/16 inch.

2.6 Types and Application of Drawings

Types and application of drawings shall be done in accordance with ASME Y14.24-2012. 

Additional applications and requirements are defined in the following sections.

2.6.1 Electrical/Electronic Diagrams (ASME Y14.24-2012, Sec. 12)

2.6.1.1 System Block Diagram or Functional Block Diagram 

a. The system shall be laid out from left to right where possible.

b. The electrical flow shall be from top to bottom where possible.
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2.6.1.2 Advanced Electrical Schematic (AES)

An advanced electrical schematic illustrates and defines electrical signal and power paths, 

detailed electrical connections, and functions of component items used within a specific circuit 

or system of circuits by means of graphic symbols. Complete and formal titles and reference 

designators of each component are identified. Indication of physical size, shape, or relative 

location of components is not required.

2.6.1.3 Elementary Electrical Schematic (EES)

An elementary electrical schematic contains much of the same information as an advanced 

electrical schematic except that wire routings and most of the detailed wire connections of the 

component items are omitted. These diagrams show all black boxes that are on the advanced 

schematic with sufficient detail to identify components and black-box functions. The schematic 

shows components in their functional relationship and is not restricted to drawing location by 

black-box outlines. Cross-reference information between the elementary electrical schematic and 

the electromechanical control diagram is shown. Hydraulic/pneumatic control circuits may also 

be shown.

2.6.1.4 Ground Integrated Schematic (GIS)

A ground integrated schematic combines a system block diagram with its related advanced 

electrical schematic, cable interconnect diagram, and system mechanical schematic/electromechanical control diagram. Used in conjunction with interfacing schematics, a ground 

integrated schematic is an analytic tool for program engineering and operational functions.

A ground integrated schematic shall give end-to-end system visibility and definition in various 

levels of detail and display formats. 

2.6.1.5 Electrical Power Riser Diagram (United States National CAD Standard – V5, 

Sheet Type 6)

Electrical AC power riser diagrams represent multiconductor power circuits as a single line. The 

various devices in the circuit (such as transformers, motor starters, and switches) and the 

connected loads are shown in simplified schematic form. This diagram locates power equipment 

and loads within a structure. Each AC power panel shall have a panel schedule, which is to be a 

part of the drawing.

2.6.1.6 Electrical Panel Schedule (United States National CAD Standard – V5, Sheet 

Type 6)

a. An electrical panel schedule is a tabulated drawing of the internal configuration of an AC

power panel.

b. A panel schedule shall be a part of the single-line power riser diagram.
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c. The panel schedule shall contain the panel location and its identification, the type of 

panel, associated circuit breakers, panel capacity and feeder source, breaker trip settings 

with the loads being supplied, spare breakers, and empty spares.

2.6.2 Space and Weight Allocation Drawing (ASME Y14.24-2012, Sec. 7)

A space and weight allocation drawing sets forth dimensional information for an item in terms of 

area, space, weight, sway and access clearance, and pipe and cable attachment that are required 

when the item is to be installed and to function with related items, and represents the as-built 

configuration.

2.6.3 Sketch

A sketch is an informal drawing by an engineer or designer. Sketches are not covered in this 

manual.

Sketches should not be prepared in place of engineering drawings for procurement of mockups, 

models, preproduction hardware, or associated equipment.

2.7 Tags and Plates

Assemblies should use identification plates and labels in accordance with 75M50393 where 

practical.

3. DIGITAL PRODUCT DATA FORMAT

3.1 Title Block

a. Government design activity data shall use 22264 for the KSC CAGE Code.

b. Government design activity data shall use John F. Kennedy Space Center for the name

and NASA Kennedy Space Center, Florida for the address.

c. Government design activity data shall not contain specific contractor identification, such 

as names or logos.

3.2 Security Classification and Notation

Security classifications and notations shall be shown on all digital product data warranting such 

classifications in accordance with DOD 5220.22-M, NPR 1600.1, NPR 2190.1, 

ASME Y14.100-2013, and ASME Y14.41-2012.
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3.3 Notice

The following notice shall appear in the upper left corner of all sheets or views of government 

design activity digital definition product data:

Notice: When government drawings, specifications, or other data are used for any 

purpose other than in connection with a definitely related government procurement 

operation, the United States government thereby incurs no responsibility or obligation 

whatsoever; and the fact that the government may have formulated, furnished, or in any 

way supplied the said drawings, specifications, or other data is not to be regarded by 

implication or otherwise as in any manner licensing the holder or any other person or 

corporation, or conveying any rights or permission to manufacture, use, or sell any 

patented invention that may in any way be related thereto.

4. REVISION AUTHORIZATION DOCUMENT

4.1 Change Methods

Any changes to engineering drawings shall be recorded by Engineering Order (EO) or drawing 

revision. Changes made by EOs should be incorporated into the drawing when the drawing is 

revised. EO changes will be used as an alternate method of making drawing changes only when a 

revision to the drawing is not feasible.

4.1.1 Changes by EO 

An EO is used to change an engineering drawing only when it is impractical to revise the 

drawing. When an EO is released, it becomes a permanent part of the drawing to which it is 

applicable. Any change required to correct errors on a released EO requires the preparation of a 

new EO. A new EO may cancel a preceding EO in its entirety only if no other subsequent EOs 

are affected by the cancellation. A portion of an EO cannot be cancelled. All EOs are accounted 

for in the drawing revision block at the next revision release, up to and including the last release. 

An EO against one drawing number cannot be incorporated in another drawing number.

a. All EOs that are incorporated into the drawing should be listed as INC or incorporated in 

the revision table.

b. If EO numbers were reserved and not subsequently used, they should be accounted for as 

Not used in the revision table.

c. All EOs that have been released but have been cancelled by revision or subsequent EO 

should be listed as Cancelled in the revision table.

d. An EO can be prepared on KSC Form 21-34 or an approved equivalent.

e. Changes made by EO should be incorporated into maintained drawings when the number

of outstanding EOs exceeds 10.
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4.1.2 Revisions of Engineering Drawings and Associated Lists

a. A revision block shall be completed, starting at the basic revision, in accordance with 

ASME Y14.1-2012, and including the zone on drawing sizes C, D, E, and J. 

b. The “crossing-out” method of revision should not be used.

c. When revising an existing drawing, the graphic symbols, designations, lettering style and 

size, material and method of application, and drawing practices used in creating the 

original drawing may be followed for changes/revisions, unless otherwise directed by the 

responsible design organization.
KSC-GP-435, Volume I

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APPENDIX A. NONMANDATORY SYMBOLS

Figure 1. Sheet/Zone Locator Symbol Figure 2. Flag Note Symbol

Figure 3. Find Number/Quantity Symbol Figure 4. View Title
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Figure 5. Continuation Symbol

Figure 6. Alternate Continuation Symbol Figure 7. Part Marking Symbol

Figure 8. Mechanical Find 

Number/Reference Designator Symbol

Figure 9. Electrical Reference Designator 

Symbol
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APPENDIX B. NONMANDATORY REFERENCE

This appendix provides a mapping of the contents from the previous version of KSC-GP-435 

(Rev. F) to the industry standards.

GP-435 Revision F

New Reference

Section Subsection

2.1 Scope KSC-GP-435, Section 2.1 General

2.2 Signatures, Approvals, 

Dates, and Block Entries

2.2.1 CAD Drawing ASME Y14.100-2013, Sec. 4.28 Drawing 

Verification and Approval

2.2.2 Revision Blocks ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

ASME Y14.35-2014, Sec. 6.1 Revision History 

Block Entries

ASME Y14.1-2012, Sec. 7 Revision History 

Block

2.2.3 Title Blocks ASME Y14.1-2012, Sec. 6 Title Blocks

2.3 Parts Identification/Parts List ASME Y14.100-2013, Sec. 6.6 Part or 

Identifying Number

2.3.1 Parts Identification ASME Y14.100-2013, Sec. 6.7 Reference to 

Items

ASME Y14.34-2013, Sec. 3.17 Find Number or 

Item Number

KSC-GP-435, Section 2.3 Drawing Elements

2.3.2 Parts List ASME Y14.100-2013, Sec. 4.3 Associated Lists

ASME Y14.34-2013 Associated Lists

2.3.3 Parts List Using Simplified 

Formats

ASME Y14.100-2013, Sec. 4.3 Associated Lists

ASME Y14.34-2013 Associated Lists

2.4 Drawing Scale ASME Y14.100-2013, Sec. 4.24 Scale

2.4.1 Selection of Scale ASME Y14.100-2013, Sec. 4.24.1 Selection of 

Scale

2.4.2 Indication of Scale ASME Y14.100-2013, Sec. 4.24.2 Indication of 

Scale

2.4.3 Decimal Scale ASME Y14.100-2013, Sec. 4.24.2 Indication of 

Scale

2.4.4 Common Fraction Scale ASME Y14.100-2013, Sec. 4.24.2 Indication of 

Scale

2.4.5 Not To Scale ASME Y14.100-2013, Sec. 4.24.3 Drawings 

Not to Scale

2.5 Callouts on Drawings 2.5.1 Item (Find) Numbers ASME Y14.34-2013, Sec. 3.17 Find Number or 

Item Number

KSC-GP-435 Appendix A Nonmandatory 

Symbols
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GP-435 Revision F

New Reference

Section Subsection

2.5.2 Mechanical Find Numbers 

and Reference Designators

ASME Y14.100-2013, Sec. 4.20.9 Reference 

Designations for Electrical and Electronic Parts 

and Equipment

ASME Y14.44-2008 Reference Designations 

for Electrical and Electronics Parts and 

Equipment

2.6 Weight of Components ASME Y14.1-2012, Sec. 6 Title Blocks

2.7 Dimensioning and 

Tolerancing

ASME Y14.100-2013, Sec. 4.12 Dimensioning 

and Tolerancing

2.8 Dual Dimensioning ASME Y14.100-2013, Sec. 4.12 Dimensioning 

and Tolerancing

ASME Y14.5-2009, Sec. 1.5.4 Combination SI 

(Metric) and U.S. Customary Linear Units

2.9 Metric Values ASME Y14.100-2013, Sec. 4.34 Metric 

Practices

IEEE/ASTM SI 10-2010 American National 

Standard for Metric Practice

2.10 Screw Threads ASME Y14.100-2013, Sec. 4.14 

Screw Thread Representation

ASME Y14.6-2001 Screw Thread 

Representation

2.11 Mechanical Springs ASME Y14.100-2013, Sec. 4.16 Mechanical 

Springs

2.12 Gears ASME Y14.100-2013, Sec. 4.15 Gears

ANSI Y14.7.1-1971 Gear Drawing Standards –

for Spur, Helical, Double Helical and Rack

ANSI Y14.7.2-1978 Gear and Spline Drawing 

Standards Part 2 – Bevel and Hypoid Gears

2.13 Forgings ASME Y14.100-2013, Sec. 4.18 Castings, 

Forgings, and Molded Parts

ASME Y14.8-2009 Castings, Forgings, and 

Molded Parts

2.14 Optical Elements and 

Optical Systems

ASME Y14.100-2013, Sec. 4.17 Optical 

Elements and Optical Systems

2.15 Welding Practices ASME Y14.100-2013, Sec. 4.20.6 Welding 

Symbols

AWS A2.4:2012 Standard Symbols for 

Welding, Brazing, and Nondestructive 

Examination

AWS A3.0M/A3.0:2010 Standard Welding 

Terms and Definitions; Including Terms for 

Adhesive Bonding, Brazing, Soldering, Thermal 

Cutting, and Thermal Spraying
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New Reference

Section Subsection

2.16 Abbreviations ASME Y14.100-2013, Sec. 4.20.12 

Abbreviations

ASME Y14.38-2007 Abbreviations and 

Acronyms for Use on Drawings and Related 

Documents

KSC-GP-435, Abbreviations

2.17 Graphic Symbols ASME Y14.100-2013, Sec. 4.20 Graphic 

Symbols, Designations, Letter Symbols, and 

Abbreviations

KSC-GP-435, Sec. 2.5 Graphic Symbols, 

Designations, Letter Symbols, and 

Abbreviations

2.18 Surface Texture ASME Y14.100-2013, Sec. 4.13 Surface 

Texture

ASME B46.1-2009 Surface Texture (Surface 

Roughness, Waviness, and Lay)

2.19 Computer-Aided Design 

(CAD) Drawings

Removed

2.20 CAD Line Variance ASME Y14.100-2013, Sec. 4.8 Line 

Conventions and Lettering

ASME Y14.2-2014 Line Conventions and 

Lettering

2.21 Multiviews and Sectional 

Views

ASME Y14.100-2013, Sec. 4.9 Single, 

Multiple, and Sectional View Drawings 

ASME Y14.3-2012 Orthographic and Pictorial 

Views

KSC-GP-435, Section 2.4 Single, Multiple, and 

Sectional View Drawings

2.22 Section, Detail, and View 

Identification

KSC-GP-435 Appendix A Nonmandatory 

Symbols

ASME Y14.100-2013, Sec. 4.9 Single, 

Multiple, and Sectional View Drawings

ASME Y14.3-2012 Orthographic and Pictorial 

Views

2.23 Continuation Symbol KSC-GP-435 Appendix A Nonmandatory 

Symbols

2.24 Identification Marking 2.24.1 Marking Requirements KSC-DE-512-SM Revision L Facility Systems, 

Ground Support Systems, and Ground Support 

Equipment General Design Requirements

2.24.2 Drawing Requirements ASME Y14.100-2013, Sec. 4.25 Marking for 

Item Identification

2.24.2.1 Location and Size ASME Y14.100-2013, Sec. 4.25.2 Marking 

Location and Size

2.24.2.2 Assembly Marking ASME Y14.100-2013, Sec. 4.25.3 Tags and 

Plates

KSC-GP-435, Sec. 2.7 Tags and Plates
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Section Subsection

2.25 Legibility and 

Reproducibility

2.25.1 Lines ASME Y14.100-2013, Sec. 4.8 Line 

Conventions and Lettering

ASME Y14.2-2014 Line Conventions and 

Lettering

2.25.1.1 Line Quality ASME Y14.100-2013, Sec. 4.8 Line 

Conventions and Lettering

ASME Y14.2-2014 Line Conventions and 

Lettering

2.25.1.2 Line Width ASME Y14.100-2013, Sec. 4.8 Line 

Conventions and Lettering

ASME Y14.2-2014 Line Conventions and 

Lettering

2.25.1.3 Line Spacing ASME Y14.100-2013, Sec. 4.8 Line 

Conventions and Lettering

ASME Y14.2-2014 Line Conventions and 

Lettering

2.25.2 Lettering ASME Y14.100-2013, Sec. 4.8 Line 

Conventions and Lettering

ASME Y14.2-2014 Line Conventions and 

Lettering

2.25.2.1 Typewritten Lettering Removed

2.25.2.2 Preprinted Lettering Removed

2.25.3 Signatures and Dates ASME Y14.100-2013, Sec. 4.28 Drawing 

Verification and Approval

2.25.4 Symbols ASME Y14.100-2013, Sec. 4.20 Graphic 

Symbols, Designations, Letter Symbols, and 

Abbreviations

2.25.5 Cross-Section Areas ASME Y14.100-2013, Sec. 4.9 Single, 

Multiple, and Sectional View Drawings

ASME Y14.2-2014, Sec. 4.6.2 Direction and 

Spacing

2.26 Drawing Checking Section removed

3.1 Size, Format, Title Block, 

and Material

ASME Y14.100-2013, Sec. 4.5 Size and Format 

of Engineering Drawings

ASME Y14.1M-2012 Metric Drawing Sheet 

Size and Format or ASME Y14.1-2012 Decimal 

Inch Drawing Sheet Size and Format

3.2 Preferred Formats ASME Y14.100-2013, Sec. 4.5 Size and Format 

of Engineering Drawings

ASME Y14.1M-2012 Metric Drawing Sheet 

Size and Format or ASME Y14.1-2012 Decimal 

Inch Drawing Sheet Size and Format
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New Reference

Section Subsection

3.2.1 Zoning of Drawings ASME Y14.100-2013, Sec. 4.5 Size and Format 

of Engineering Drawings

ASME Y14.1M-2012 Metric Drawing Sheet 

Size and Format or ASME Y14.1-2012 Decimal 

Inch Drawing Sheet Size and Format

3.2.2 Microfilming Alignment 

Arrowheads

ASME Y14.100-2013, Sec. 4.5 Size and Format 

of Engineering Drawings

ASME Y14.1M-2012 Metric Drawing Sheet 

Size and Format or ASME Y14.1-2012 Decimal 

Inch Drawing Sheet Size and Format

3.3 Roll-Size Format ASME Y14.100-2013, Sec. 4.5 Size and Format 

of Engineering Drawings

ASME Y14.1M-2012 Metric Drawing Sheet 

Size and Format or ASME Y14.1-2012 Decimal 

Inch Drawing Sheet Size and Format

3.3.1 Zoning ASME Y14.100-2013, Sec. 4.5 Size and Format

of Engineering Drawings

ASME Y14.1M-2012 Metric Drawing Sheet 

Size and Format or ASME Y14.1-2012 Decimal 

Inch Drawing Sheet Size and Format

3.3.2 Margins ASME Y14.100-2013, Sec. 4.5 Size and Format 

of Engineering Drawings

ASME Y14.1M-2012 Metric Drawing Sheet 

Size and Format or ASME Y14.1-2012 Decimal 

Inch Drawing Sheet Size and Format

3.3.3 Match Lines ASME Y14.100-2013, Sec. 4.5 Size and Format 

of Engineering Drawings

ASME Y14.1M-2012 Metric Drawing Sheet 

Size and Format or ASME Y14.1-2012 Decimal 

Inch Drawing Sheet Size and Format

3.3.4 Supplemental Drawing 

Number Blocks

ASME Y14.100-2013, Sec. 4.5 Size and Format 

of Engineering Drawings

ASME Y14.1M-2012 Metric Drawing Sheet 

Size and Format or ASME Y14.1-2012 Decimal 

Inch Drawing Sheet Size and Format

3.4 Security Classification and 

Notation

KSC-GP-435, Sec. 3.2 Security Classification 

and Notation

3.5 Parts List ASME Y14.100-2013, Sec. 4.3 Associated Lists

ASME Y14.34-2013 Associated Lists

3.6 Notice KSC-GP-435, Sec. 3.3 Notice

ASME Y14.100-2013, Sec 7.8 Rights in Data 

Legends on Drawings

3.7 KSC Contractor Drawing 

Format

KSC-GP-435, Sec. 1 Introduction

3.8 Preprinted Drawing Format 

Materials

Removed
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New Reference

Section Subsection

3.9 Computer-Generated 

Drawing Formats and Materials

KSC-GP-435, Sec. 2.3 Drawing Elements

3.10 Metric-Size Paper ASME Y14.100-2013, Sec. 4.5.1 Metric

ASME Y14.1M-2012 Decimal Inch Drawing 

Sheet Size and Format

4.1 General ASME Y14.100-2013, Sec. 4.2 Types and 

Application of Engineering Drawings

ASME Y14.24-2012 Types and Applications of 

Engineering Drawings

4.2 Advanced Electrical 

Schematic

KSC-GP-435, Sec. 2.6.1.2 Advanced Electrical 

Schematic (AES)

4.3 Elementary Electrical 

Schematic

KSC-GP-435, Sec. 2.6.1.3 Elementary 

Electrical Schematic (EES)

4.4 Electrical Single-Line 

Diagram

ASME Y14.24-2012, Sec. 14.2 Single-Line 

Diagram

4.5 Electrical Two-Line DC 

Power Diagram

No longer required 

4.6 Cable Interconnect Diagram ASME Y14.24-2012, Sec. 14.5 Interconnection 

Diagram

4.7 Mechanical Schematic ASME Y14.24-2012, Sec. 13 Mechanical 

Schematic Diagram

4.8 Electromechanical Control 

Diagram

ASME Y14.24-2012, Sec. 13 Mechanical 

Schematic Diagram

4.9 System Mechanical 

Schematic

ASME Y14.24-2012, Sec. 13 Mechanical 

Schematic Diagram

4.10 System Block Diagram ASME Y14.24-2012, Sec. 14.1 Functional 

Block Diagram

4.11 Ground Integrated 

Schematic

KSC-GP-435, Sec. 2.6.1.4 Ground Integrated 

Schematic (GIS)

4.12 Logic Diagram ASME Y14.24-2012, Sec. 14.7 Logic Circuit 

Diagram

4.13 Functional Flow Diagram ASME Y14.24-2012, Sec. 14.1 Functional 

Block Diagram

4.14.1 Equipment 

Procurement/Performance 

Specification Drawing

ASME Y14.24-2012, Sec. 10 Control Drawings

4.14.2 Component 

Procurement/Performance 

Specification Drawing

ASME Y14.24-2012, Sec. 10 Control Drawings

4.14.3 Process Specification 

Drawing

Not applicable for this manual

4.14.4 Material Specification 

Drawing

Not applicable for this manual
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Section Subsection

4.15 Component Maintenance 

Drawing

Not applicable for this manual

4.16 Cable Harness Drawing ASME Y14.24-2012, Sec. 15.1 Wiring Harness 

Drawing

4.17 Cable Assembly Drawing ASME Y14.24-2012, Sec. 15.2 Cable Assembly 

Drawing

4.18 Cable Installation Drawing ASME Y14.24-2012, Sec. 7 Installation 

Drawing

4.19 Cable Subassembly 

Drawing

ASME Y14.24-2012, Sec. 15.2 Cable Assembly 

Drawing

4.20 Printed-Wiring Drawing ASME Y14.24-2012, Sec. 15.3 Printed Board 

and Discrete Wiring Board Drawing Sets

4.21 Assembly Drawing ASME Y14.24-2012, Sec. 6 Assembly Drawing

4.22 Detail Assembly Drawing ASME Y14.24-2012, Sec. 5.2 Multidetail 

Drawing

4.23 Detail Drawing ASME Y14.24-2012, Sec. 5.1 Monodetail 

Drawing

4.24 Arrangement Drawing ASME Y14.24-2012, Sec. 9 Arrangement 

Drawing

4.25 Envelope Drawing ASME Y14.24-2012, Sec. 10.4 Envelope 

Drawing

4.26 Installation Drawing ASME Y14.24-2012, Sec. 7 Installation 

Drawing

4.27 Space Allocation Drawing KSC-GP-435, Sec. 2.6.2 Space and Weight 

Allocation Drawing (ASME Y14.24-2012, 

Sec. 7)

4.28 Matched-Parts Drawing ASME Y14.24-2012, Sec. 15.8 Matched Set 

Drawing

4.29 Altered-Parts Drawing ASME Y14.24-2012, Sec. 8.1 Altered Item 

Drawing

4.30 Modification Drawing ASME Y14.24-2012, Sec. 8.3 Modification 

Drawing

4.31 Layout and Proposal 

Drawings

ASME Y14.24-2012, Sec. 4 Layout Drawing

4.32 Undimensioned Drawing ASME Y14.24-2012, Sec. 15.5 Undimensioned 

Drawing

4.33 Block Diagram ASME Y14.24-2012, Sec. 14.1 Functional 

Block Diagram

4.34 Sketch Drawing KSC-GP-435, Sec. 2.6.3 Sketch

4.35 Interface Control Drawing ASME Y14.24-2012, Sec. 11 Interface Drawing

4.36 System/Equipment Parts 

List

ASME Y14.34-2013 Associated Lists
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Section Subsection

4.37 Electrical Wire Running 

List

ASME Y14.34-2013, Sec. 3.26 Wire List

4.38 Patch List No longer required

4.39 System/Equipment 

Documentation List

Not applicable for this manual

4.40 Index List ASME Y14.34-2013, Sec. 3.20 Index List

4.41 Electrical Power Riser 

Diagram

KSC-GP-435, Sec. 2.6.1.5 Electrical Power 

Riser Diagram (United States National CAD 

Standard – V5, Sheet Type 6)

4.42 Electrical Panel Schedule KSC-GP-435, Sec. 2.6.1.6 Electrical Panel 

Schedule (United States National CAD Standard 

– V5, Sheet Type 6)

4.43 System Mechanical 

Schematic/Electromechanical 

Control Diagram (SMS/EMCD)

ASME Y14.24-2012, Sec. 13 Mechanical 

Schematic Diagram

4.44 Standard Interface 

Document

ASME Y14.24-2012, Sec. 11 Interface Drawing

4.45 Hardware Interface Module 

(HIM) Configuration Document 

(HCD)

No longer required

4.46 Operation and Maintenance 

Requirements and Specifications 

Document (OMRSD)

Not applicable for this manual

5.1 General ASME Y14.100-2013, Sec. 5 Drawing Titles

5.2 Requirements 5.2.1 First Part ASME Y14.100-2013, Sec. 5.2 General Rules

5.2.1.1 Basic Name ASME Y14.100-2013, Sec. 5.2 General Rules

5.2.1.2 Modifier ASME Y14.100-2013, Sec. 5.2 General Rules

5.2.2 Second Part ASME Y14.100-2013, Sec. 5.2 General Rules

5.3 Rules ASME Y14.100-2013, Sec. 5.2 General Rules

6.1 Scope

6.2 Identification Requirements ASME Y14.100-2013, Sec. 6 Numbering, 

Coding, and Identification

6.2.1 Commercial and 

Government Entity (CAGE) 

Code

KSC-GP-435, Sec. 3.1 Title Block

6.2.2 Referenced Documents ASME Y14.100-2013, Sec. 4.27.6 Drawing 

Notes – Contents

6.2.3 Drawing Number ASME Y14.100-2013, Sec. 6.2 Drawing 

Numbers

6.2.4 Records Not applicable for this manual

6.2.5 Transferring Design 

Responsibility to Another 

Organization

ASME Y14.100-2013, Sec. 6.5.2.1 Transferring 

Design Responsibility to Another Activity
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Section Subsection

6.3 Part Number ASME Y14.100-2013, Sec. 6.6 Part or 

Identifying Number

6.3.1 Item Identification and Part 

Number

ASME Y14.100-2013, Sec. 6.7 Reference to 

Items

6.3.2 Reidentification Not applicable for this manual

6.3.3 Identification on Drawings ASME Y14.100-2013, Sec. 6.7 Reference to 

Items

ASME Y14.34-2013, Sec. 3.17 Find Number or 

Item Number

6.3.4 CAGE Code and Part 

Numbers

ASME Y14.100-2013, Sec. 6.6 Part or 

Identifying Number

6.3.5 Numbering of Related 

Parts

6.3.5.1 Matched Parts 

Designation

ASME Y14.24-2012, Sec. 15.8 Matched Set 

Drawing

6.3.5.2 Symmetrically Opposite 

parts

ASME Y14.24-2012, Sec. 5.1 Monodetail 

Drawing

6.3.5.3 Inseparable Assembly ASME Y14.24-2012, Sec. 6.2 Inseparable 

Assembly Drawing

6.3.6 Changes Requiring New 

Identification

ASME Y14.100-2013, Sec. 6.8.1 Change 

Requiring New Identification

6.3.7 Changes not Requiring 

New Identification

ASME Y14.100-2013 Nonmandatory Appendix 

D, Sec. D-13.2 Changes Not Requiring New 

Identification

6.4 Identification of Materials, 

Processes, and Protective 

Treatment

ASME Y14.100-2013 Nonmandatory Appendix 

D, Sec. D-14 Identification of Materials, 

Processes, and Protective Treatment 

6.4.1 Group Identification ASME Y14.100-2013 Nonmandatory Appendix 

D, Sec. D-14.1 Group Identification

6.4.2 Other Identification ASME Y14.100-2013 Nonmandatory Appendix 

D, Sec. D-14.2 Other Identification

6.4.3 Formulation Identification ASME Y14.100-2013 Nonmandatory Appendix 

D, Sec. D-14.3 Formulation Identification

6.4.4 Bulk Materials 

Identification

ASME Y14.100-2013 Nonmandatory Appendix 

D, Sec. D-14.4 Bulk Items Identification

6.5 Interface Control 

Identification

ASME Y14.100-2013, Sec. 4.2 Types and 

Application of Engineering Drawings

ASME Y14.24-2012, Sec. 11 Interface Drawing

6.6 Reference Designations ASME Y14.44-2008 Reference Designations 

for Electrical and Electronics Parts and 

Equipment

6.6.1 Mechanical Find Number Not applicable for this manual

6.6.1.1 Records Not applicable for this manual

6.6.1.2 Find Number and Use Not applicable for this manual
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Section Subsection

6.6.2 Electrical Reference 

Designator

ASME Y14.44-2008 Reference Designations 

for Electrical and Electronics Parts and 

Equipment

6.6.2.1 Records ASME Y14.44-2008 Reference Designations 

for Electrical and Electronics Parts and 

Equipment

6.6.2.2 Electrical Reference 

Designator Number

ASME Y14.44-2008 Reference Designations 

for Electrical and Electronics Parts and 

Equipment

6.6.2.3 Electrical Reference 

Designator Use

ASME Y14.44-2008 Reference Designations 

for Electrical and Electronics Parts and 

Equipment

6.6.2.4 Cable Assemblies ASME Y14.44-2008 Reference Designations 

for Electrical and Electronics Parts and 

Equipment

6.6.2.5 Buses ASME Y14.44-2008 Reference Designations 

for Electrical and Electronics Parts and 

Equipment

7.1 General

7.2 Drawing Note Types ASME Y14.100-2013, Sec. 4.27 Drawing Notes

7.2.1 General Notes ASME Y14.100-2013, Sec. 4.27.6 Drawing 

Notes – Contents

7.2.2 Specific Notes ASME Y14.100-2013, Sec. 4.27.6 Drawing 

Notes – Contents

7.2.3 Flag Notes ASME Y14.100-2013, Sec. 4.27.6 Drawing 

Notes – Contents

7.3 Language Style ASME Y14.100-2013, Sec. 4.27.1 Language

7.4 Commonly Used Words and 

Phrases

ASME Y14.100-2013, Sec. 4.27.2 Commonly 

Used Words and Phrases

7.5 Use of “Shall,” “Will,”

“Should,” and “May”

ASME Y14.100-2013, Sec. 4.27.3 Use of Shall, 

Will, Should, and May

7.6 Indefinite Terms ASME Y14.100-2013, Sec. 4.27.4 Indefinite 

Term

7.7 Note Contents ASME Y14.100-2013, Sec. 4.27.6 Drawing 

Notes – Contents

7.8 Material Notes Expected responsibility of design activity

7.9 Castings Expected responsibility of design activity

7.10 Electrical and Electronic Expected responsibility of design activity

7.11 Finishes, Applied Expected responsibility of design activity

7.12 Finishes, Machined Expected responsibility of design activity
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Section Subsection

7.13 Forgings Expected responsibility of design activity

7.14 Heat Treatment Expected responsibility of design activity

7.15 Inspection Expected responsibility of design activity

7.16 Riveting Expected responsibility of design activity

7.17 Threads and Threaded 

Fasteners

Expected responsibility of design activity

7.18 Welding, Brazing, and 

Soldering

Expected responsibility of design activity

7.19 Miscellaneous Expected responsibility of design activity

8.1 Scope

8.2 Documentation Release 

Authorization Form

Controlled by process

8.3 Drawing Release 

Application

Controlled by process

8.4 Preliminary Release Controlled by process

8.5 Preliminary Release Marking Controlled by process

8.6 Final Release Controlled by process

8.7 Drawing Revision/Change 

Revision

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

8.8 Release Records Controlled by process

8.9 Drawing Control Controlled by process

8.10 Duplicate Originals ASME Y14.100-2013, Sec. 7.9 Duplicate 

Original

8.11 Drawing Record Controlled by process

9.1 Scope

9.2 Change Methods ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

KSC-GP-435, Section 4.1 Change Methods

9.2.1 Changes by EO ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

KSC-GP-435, Section 4.1.1 Changes by EO

9.2.1.1 Accounting for EO’s in 

Revision Blocks

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.2.1.2 EO Format KSC-GP-435, Section 4.1.1 Changes by EO

9.2.1.3 Preparation of the 

Engineering Order (KSC Form 

21-34)

Not applicable for this manual
KSC-GP-435, Volume I

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GP-435 Revision F

New Reference

Section Subsection

9.2.1.4 Preparation of the 

Engineering Order Continuation 

Sheet (KSC Form 21-34A)

Not applicable for this manual

9.3 Revision Methods ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

KSC-GP-435, Section 4.1.2 Revision of 

Engineering Drawings and Associated Lists

9.3.1 Revision Drawing 

Practices

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.3.2 Change in Dimensions ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.4 Recording Revisions on 

Drawings

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.4.1 Zone ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.4.2 Revision Letter ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.4.3 Description ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.4.3.1 Sheet 1 of Drawing ASME Y14.100-2013, Sec. 4.4 Revisions of

Engineering Drawings and Associated Lists

9.4.3.2 Succeeding Sheets ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.4.4 Revision Date ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.4.5 Approval ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.4.6 Separating Revisions ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.5 Revision Identification ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.5.1 Revision Letters ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.5.2 Revision Symbols ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.6 Revision of Multiple-Sheet 

Drawings

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.6.1 Adding Sheets ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.6.1.1 Inserting New Sheets ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.6.1.2 Adding Sheets to the End ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists
KSC-GP-435, Volume I

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GP-435 Revision F

New Reference

Section Subsection

9.6.1.3 Inserting New Sheets and 

Renumbering

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.6.2 Deleting Sheets ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.6.2.1 Deleting Sheets Without 

Renumbering

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.6.2.2 Deleting Sheets and 

Renumbering

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.6.2.3 Reinstating 

Cancelled/Deleted Sheets

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.6.3 Rearranging Sheets ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.7 Cancelled Drawings ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.8 Obsolete Drawings ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.9 Redrawn or Replotted 

Drawings

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.10 Reinstating a 

Cancelled/Obsolete Drawing

ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists

9.11 Documentation Files ASME Y14.100-2013, Sec. 4.4 Revisions of 

Engineering Drawings and Associated Lists
KSC-GP-435, Volume I

Revision G, Change 1

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STANDARDIZATION DOCUMENT IMPROVEMENT PROPOSAL

INSTRUCTIONS

1. The preparing activity must complete blocks 1, 2, 3, and 8. In block 1, both the document number and revision letter 

should be given.

2. The submitter of this form must complete blocks 4, 5, 6, and 7.

3. The preparing activity must provide a reply within 30 days from receipt of the form.

NOTE: This form may not be used to request copies of documents, nor to request waivers or clarification of 

requirements on current contracts. Comments submitted on this form do not constitute or imply authorization to 

waive any portion of the referenced document or to amend contractual requirements.

I RECOMMEND A CHANGE:

1. DOCUMENT NUMBER

KSC-GP-435, Volume I, 

Revision G, Change 1

2. DOCUMENT DATE

March 26, 2015

3. DOCUMENT TITLE

Engineering Drawing Practices, Volume I of II, Aerospace and Ground Support Equipment

4. NATURE OF CHANGE (Identify paragraph number and include proposed rewrite, if possible. Attach extra sheets as needed.)

5. REASON FOR RECOMMENDATION

6. SUBMITTER

a. NAME (Last, First, Middle Initial) b. ORGANIZATION

c. ADDRESS (Include Zip Code) d. TELEPHONE (Include Area Code) 7. DATE SUBMITTED

8. PREPARING ACTIVITY

a. NAME

Mathews, Roger E.

b. ORGANIZATION

Engineering Directorate

c. ADDRESS (Include Zip Code)

Kennedy Space Center, FL 32899

KSC FORM 21-610NS (2/94) (C/G 2/94) KDP-F-5407 REV. DRAFT 2