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 The National Stock Number A National/NATO Stock Number (NSN) is simply an official label applied to an item that has been cataloged in the Federal Cataloging System (FCS) or NATO Codification System (NCS).
The NSN consists of 13-digit code, composed of 4-digit Federal/NATO Supply Classification (FSC/NSC), the 9-digit National/NATO Item identification Number (NIIN) is composed of a 2-digit NATO Code for the National Codification Bureau (NCB), plus a 7-digit non-significant number assigned by the individual NCB.
During the NSN assignment, a wide range of logistics data is assembled to define the Item of Supply. This information includes the Item Name, Manufacturer’s Reference Number, Unit Price, Characteristics, Shelf-Life and information associated with the Acquisition all the way to the Disposition of the Item of Supply.
Federal Logistics Information System (FLIS) data is unrestricted information for each National Stock Number (NSN) in the Federal Catalog System (FCS). FLIS forms the foundation for all logistics information systems and is the catalog of more than sixteen million Supply Items used by the U.S. Government and international partners. Below are resources that can be Federal Logistics Information System (FLIS) data. Federal Logistics (FED LOG) FED LOG provides users the ability to access and query FLIS data during instances when internet connectivity is not available. FED LOG provides essential information about items of supply to include the NSN, Approved Item Name, Manufacturers and Distributor information, to include Part Numbers, Freight Data, Hazardous Materiel Indicators, Interchangeable and Substitution data, Acquisition Advice Code (AAC) and Unit Price, Physical and Performance Characteristics along with service specific management data. FED LOG is available for download by .mil or .gov customers with NIPRNET access via FedMall http://www.fedmall.mil under the tools menu. Web Federal Logistics Information System (WebFLIS) WebFLIS is a tool that provides essential information about supply items including the NSN, the item name and company data (including part numbers), through a web interface connected to Federal Logistics Information System (FLIS) data. This information is primarily used by DLA, military services, and United States Government sponsored contractors doing business with the U.S. Government. WebFLIS data is updated multiple times a day. WebFLIS has additional tabs such as Advanced Characteristics Search, Medical, Weapon System and a Bill of Material (BOM)/Sets, Kits and Outfits (SKO) to allow users to narrow down searches using specific filtering and clear text supply codes with the ability to translate.
For more information, please visit: **https://www.dla.mil/does/webflis** Public Logistics (PUB LOG) PUB LOG is intended for use by the public who require National Stock Number (NSN) and other publicly releasable cataloging information including Federal Supply Classification (FSC) data and Commercial and Government Entity (CAGE) codes. PUB LOG can be downloaded from the FLIS e-Reading Room. Updated products with complete datasets are uploaded on the 1st of every month. All proprietary data and service unique data on the NSN is excluded. Most public and contractor requirements are satisfied through PUB LOG tool and the download contains both the classic version and the new, user friendly “IMD2” version. Contractors that require FED LOG data are able to download from FedMall, if they have a CAC and access to the government NIPRNet. To visit the FLIS e-Reading room, please visit: **https://www.dla.mil/HQ/InformationOperations/LogisticsInformationServices/FOIAReading/**  Expand for Application Cross-Reference of Total Item Record and Cataloging Terms Total Item Record (TIR) and Cataloging Terms
   PUB LOG
   FED LOG
   WebFLISAcquisition Advice Code (AAC)
   Yes
   Yes
   YesAcquisition Method Code (AMC)
   Yes
   Yes
   YesAcquisition Method Suffix Code (AMSC)
   Yes
   Yes
   YesAir Force Management Control Data
   Yes
   Yes
   YesArmy Management Control Data
   Yes
   Yes
   YesArmy Master Data File (AMDF)
   No
   Yes
   NoAuthorized Item Identification Data Collaborator Code (AUTH-COLLAB)
   Yes
   Yes
   YesAuthorized Item Identification Data Receiver Code (AUTH-RCVR)
   Yes
   Yes
   YesCAGE Code
   Yes
   Yes
   YesCAGE Status
   Yes
   Yes
   YesCharacteristics – Master Requirement Code (MRC)
   Yes
   Yes
   YesCharacteristics (clear text)
   Yes
   Yes
   YesClass of Supply (COS) Subclass
   No
   Yes
   NoCommon Name (Colloquial)
   Yes
   Yes
   YesControlled Inventory Item Code (CIIC)
   Yes
   Yes
   YesCriticality Code (CRITL-CD)
   Yes
   No
   YesDemilitarization Code (DEMIL-CD)
   Yes
   Yes
   YesDemilitarization Integrity (DEMIL-INTG)
   Yes
   Yes
   YesDepot Source of Repair (DSOR)
   Yes
   Yes
   YesDisposal
   No
   Yes
   NoDistribution Standard System (DSS) Weight and Cube
   Yes
   Yes
   YesDocument Availability Code (DAC)
   Yes
   Yes
   YesElectrostatic Discharge (ESD) / Electromagnetic Interference (ESD-EMI) Code
   Yes
   No
   YesEnd Item Application
   No
   Yes
   NoEnd Item Name
   No
   Yes
   YesEnvironmental Attribute Code (ENAC)
   Yes
   Yes
   YesFederal Supply Class (FSC)
   Yes
   Yes
   YesFederal Supply Group (FSG)
   Yes
   Yes
   YesFreight, FLIS Data (Segment Data)
   Yes
   Yes
   YesHazardous Characteristics Code (HCC)
   Yes
   Yes
   YesHazardous Materials Indicator Code (HMIC)
   Yes
   Yes
   YesHistorical Data
   No
   Yes
   YesIntegrated Materiel Manager (IMM)
   Yes
   No
   NoInterchangeability & Substitutability (I&S) Segment Data
   Yes
   Yes
   YesItem Identification (II) Code
   Yes
   Yes
   YesItem Identification Data Submitter (SUBMTR)
   Yes
   Yes
   YesItem Identification Guide (IIG/FIIG)
   Yes
   Yes
   YesItem Management Code (IMC)
   Yes
   Yes
   YesItem Management Coding Activity (IMCA)
   Yes
   Yes
   YesItem Name
   Yes
   Yes
   YesItem Name Code (INC)
   Yes
   Yes
   YesItem Standardization Code (ISC)
   Yes
   Yes
   YesItem Unique Identification (IUID) Code
   Yes
   Yes
   YesJump to Code (JTC)
   Yes
   Yes
   YesMajor Organizational Entry (MOE-CD) Code
   Yes
   Yes
   YesMajor Organizational Entry (MOE-RL) Rule
   Yes
   Yes
   YesManagement Control (MGMT-CTL) Data
   Yes
   Yes
   YesManagement Futures FLIS Segment Data
   Yes
   Yes
   YesMarine Corps Management Control Data
   Yes
   Yes
   YesNational Item Identification Number (NIIN)
   Yes
   Yes
   YesNational Stock Number (NSN)
   Yes
   Yes
   YesNavy Corps Management Control Data
   Yes
   Yes
   YesNomenclature
   No
   Yes
   YesNo consumable Item Material Support Code (NIMSC)
   Yes
   Yes
   YesNuclear Weapons Related Materiel (NWRM) Indicator
   No
   No
   NoOrder of Use (OOU)
   Yes
   Yes
   YesPackaging, FLIS Segment Data
   Yes
   Yes
   YesPhrase Code (PHRASE-CD)
   Yes
   Yes
   YesPhrase Statement
   Yes
   Yes
   YesPrecious Metals Indicator Code (PMIC)
   Yes
   Yes
   YesPrimary Inventory Control Activity (PICA)
   Yes
   Yes
   YesPrimary Inventory Control Activity (PICA) Level of Authority (LOA)
   Yes
   Yes
   YesQuantity Unit Pack (QUP)
   Yes
   Yes
   YesRecoverability/Reparability Code
   Yes
   Yes
   YesReference / Part Number (PN)
   Yes
   Yes
   YesReference Number Action Activity Code (RNAAC)
   Yes
   Yes
   YesReference Number Category Code (RNCC)
   Yes
   Yes
   YesReference Number Variation Code (RNVC)
   Yes
   Yes
   YesSchedule-B Identification Code
   Yes
   Yes
   YesSecondary Inventory Control Activity (SICA)
   Yes
   Yes
   YesSecondary Inventory Control Activity (SICA) Level of Authority (LOA)
   Yes
   Yes
   YesShelf-Life Code (SLC)
   Yes
   Yes
   YesSource Maintenance Recoverability (SMR) Code
   No
   Yes
   NoSource of Supply (SOS)
   Yes
   Yes
   YesSpecial Material Indicator Code (SMIC)
   Yes
   Yes
   YesStandardization FLIS Segment Data
   Yes
   Yes
   YesSupplementary Collaborator (SUPP-COLLAB)
   Yes
   Yes
   YesSupplementary Receiver (SUPP-RCVR)
   Yes
   Yes
   YesUnit Issue (UI)
   Yes
   Yes
   YesUnit Price
   Yes
   Yes
   YesUsing Service Code (USC)
   Yes
   Yes
   YesWeapon System Code (WSC)
   No
   Yes
   NoWeapon System Essentiality Code (WSEC) and Weapon System Name (WPN-SYS-NAME)
   No
   No
   YesWeapons System Designator Code (WSDC)
   No
   No
   Yes
 Logistics Operations offers comprehensive training and education on DLA products and services. Courses are offered via classroom instruction, as well as delivery by Computer Based Training (CBT), Web Based Training (WBT), Satellite/VTC Training, and Webinar. Tailored courses are developed to meet individual service or agency needs. 
Email: dla.tng@dla.mil
Web: https://www.dla.mil/HQ/LogisticsOperations/TrainingandReference/ DLA Customer Interaction Center (DLA CIC) We’re here for you 24 hours a day, 7 days a week, including Government holidays.
‘One Call Resolution’
Toll Free: 1-877-DLA-CALL
Defense Switched Network (DSN): xx-877-352-2255
Email: dlacontactcenter@dla.mil Email us at customeroutreach@dla.mil for questions or additional interest in Brochures.