Exhibit 10.2

EXECUTION VERSION

AMENDMENT NO. 3
TO CREDIT AGREEMENT

This Amendment No. 3 and Consent to Credit Agreement (this “Amendment”), dated
as of December 14, 2015, among PRECISION CASTPARTS CORP., an Oregon corporation
(the “Borrower”), the financial institutions party hereto, as Lenders (the
“Lenders”), and BANK OF AMERICA, N.A., as administrative agent for the Lenders
(together with its successors and assigns in such capacity, the “Administrative
Agent”), amends that certain Credit Agreement, dated as of December 16, 2013 (as
amended by that certain Amendment No. 1 to Credit Agreement dated as of April 1,
2015, Amendment No. 2 and Consent to Credit Agreement dated as of June 15, 2015
and as further amended, restated, supplemented or otherwise modified from time
to time, the “Credit Agreement;” unless otherwise defined herein, the terms used
herein shall have the respective meanings assigned to such terms in, or
incorporated by reference into, the Credit Agreement).

WHEREAS, the Borrower has requested that the Administrative Agent and the
Lenders party hereto amend the Credit Agreement and the Form of Compliance
Certificate in order to, among other things, amend (i) the definition of “Change
of Control” in Section 1.01 of the Credit Agreement and (ii) Sections 6.01(a)
and (b) to allow for the delivery of financial statements to reflect a stub
period in connection with a proposed acquisition of the Borrower; and

WHEREAS, the Credit Agreement requires that the consent of the Borrower and the
Required Lenders, and the acknowledgement of the Administrative Agent, be
obtained in order to effect the amendments contemplated herein;

NOW, THEREFORE, in consideration of the premises and mutual covenants herein
contained, the parties hereto agree as follows:

SECTION 1. Amendments. Subject to the terms and conditions set forth herein, the
Credit Agreement and Exhibit E (Form of Compliance Certificate) attached thereto
shall be amended as follows:

(a)    a new definition, “Berkshire Acquisition”, shall be added to Section
1.01, in alphabetical order, to read as follows:
““Berkshire Acquisition” means the acquisition of the Borrower by Berkshire
Hathaway Inc. pursuant to that certain Agreement and Plan of Merger, dated as of
August 8, 2015, as further amended, restated, supplemented or otherwise modified
from time to time”;
(b)    the definition of “Change of Control” in Section 1.01 of the Credit
Agreement shall be amended by replacing such definition with the following:
““Change of Control” means an event or series of events by which:
(a)    any “person” or “group” (as such terms are used in Sections 13(d) and
14(d) of the Securities Exchange Act of 1934, but excluding any employee benefit
plan of such person or its subsidiaries, and any person or entity acting in its

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capacity as trustee, agent or other fiduciary or administrator of any such plan)
becomes the “beneficial owner” (as defined in Rules 13d‑3 and 13d‑5 under the
Exchange Act, except that a person or group shall be deemed to have “beneficial
ownership” of all securities that such person or group has the right to acquire
(such right, an “option right”), whether such right is exercisable immediately
or only after the passage of time), directly or indirectly, of 50% or more of
the equity securities of the Borrower entitled to vote for members of the board
of directors or equivalent governing body of the Borrower on a fully-diluted
basis (and taking into account all such securities that such person or group has
the right to acquire pursuant to any option right); or
(b)    during any period of 12 consecutive months, a majority of the members of
the board of directors or other equivalent governing body of the Borrower cease
to be composed of individuals (i) who were members of that board or equivalent
governing body on the first day of such period, (ii) whose election or
nomination to that board or equivalent governing body was approved by
individuals referred to in clause (i) above constituting at the time of such
election or nomination at least a majority of that board or equivalent governing
body or (iii) whose election or nomination to that board or other equivalent
governing body was approved by individuals referred to in clauses (i) and (ii)
above constituting at the time of such election or nomination at least a
majority of that board or equivalent governing body;
provided that, the Berkshire Acquisition shall not be deemed to be a Change of
Control hereunder.”;
(c)    Sections 6.01(a) and (b) shall be amended and restated as follows:
“(a)    as soon as available and in any event within 45 days after the end of
each of its first three quarterly accounting periods in each fiscal year or at
such other time, allowed by the SEC, GAAP or the Administrative Agent, to
reflect a stub financial reporting period as a result of the Berkshire
Acquisition or conversion to a new accounting period aligning with its
Affiliates after the Berkshire Acquisition, consolidated statements of earnings
and cash flows of the Borrower and the Consolidated Subsidiaries for the period
from the beginning of such fiscal year to the end of such fiscal period and the
related consolidated balance sheet of the Borrower and the Consolidated
Subsidiaries as at the end of such fiscal period, all in reasonable detail (it
being understood that delivery of such statements as filed with the SEC shall be
deemed to satisfy the requirements of this subsection);
(b)    as soon as available and in any event within 90 days after the end of
each fiscal year or at such other time, allowed by the SEC, GAAP or the
Administrative Agent, to reflect a stub financial reporting period as a result
of the Berkshire Acquisition or conversion to a new accounting period aligning
with its Affiliates after the Berkshire Acquisition, consolidated statements of
earnings and cash flows of the Borrower and the Consolidated Subsidiaries for
such year (or shorter period as a result of the Berkshire Acquisition) and the
related consolidated balance sheets of the Borrower and the Consolidated
Subsidiaries as at the end of such year (or shorter period as a result of the
Berkshire Acquisition), all in reasonable

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detail and accompanied by an opinion of independent public accountants of
recognized standing selected by the Borrower as to such consolidated financial
statements (it being understood that delivery of such statements as filed with
the SEC shall be deemed to satisfy the requirements of this subsection);”; and
(d)    Exhibit E (Form of Compliance Certificate) shall be amended by replacing
such Exhibit in its entirety with the Form of Compliance Certificate attached as
Exhibit E hereto.
SECTION 2. Conditions Precedent. The effectiveness of this Amendment and the
amendments to the Credit Agreement and Exhibit E attached thereto provided in
Section 1 are subject to the satisfaction of the following conditions precedent:

(a)    the Administrative Agent shall have received counterparts of this
Amendment, duly executed by the Borrower, the Administrative Agent, the L/C
Issuer, the Swing Line Lender and the Required Lenders; and

(b)    all fees and expenses payable to the Administrative Agent and the Lenders
pursuant to Section 4 of this Amendment shall have been paid in full by the
Borrower.

SECTION 3. Representations and Warranties. The Borrower hereby makes to the
Lenders and the Administrative Agent on and as of the date hereof the following
representations and warranties:

(a)    Authority. The Borrower has the requisite corporate power and authority
to execute and deliver this Amendment and to perform its obligations hereunder
and under the Credit Agreement (as modified hereby). The execution, delivery and
performance by the Borrower of this Amendment and the performance of the Credit
Agreement (as modified hereby) have been duly approved by all necessary
corporate action and no other proceedings are necessary to consummate such
transactions;

(b)    Enforceability. This Amendment has been duly executed and delivered by
the Borrower. The Credit Agreement (as modified hereby) is the legal, valid and
binding obligation of the Borrower enforceable against the Borrower in
accordance with its terms, and is in full force and effect;

(c)     Representations and Warranties. The representations and warranties of
the Borrower contained in the Credit Agreement (other than any such
representations or warranties that, by their terms, are specifically made as of
a date other than the date hereof) are correct on and as of the date hereof as
though made on and as of the date hereof; and

(d)     No Events of Default. No event has occurred and is continuing that
constitutes, or with the giving of notice or passage of time (or both) will
constitute, an Event of Default.

SECTION 4. Fees and Expenses. The Borrower agrees to pay all fees and expenses
payable to the Administrative Agent (including the reasonable out of pocket fees
and expenses of counsel to the Administrative Agent) incurred in connection with
the execution and delivery of this Amendment.

SECTION 5. Reference to and Effect on the Credit Agreement.

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(a)    Except as amended hereby, the Credit Agreement is and shall continue to
be in full force and effect and is hereby in all respects ratified and confirmed
by the Lenders, the L/C Issuer, the Swing Line Lender and the Administrative
Agent.

(b)    The execution, delivery and effectiveness of this Amendment shall not
operate as a waiver of any right, power or remedy of the Lenders, the L/C
Issuer, the Swing Line Lender or the Administrative Agent under the Credit
Agreement or constitute a waiver of any provision of the Credit Agreement.

SECTION 6. Amendment and Waiver. No provision hereof may be amended, waived,
supplemented, restated, discharged or terminated without the written consent of
the parties hereto.

SECTION 7. Successors and Assigns. This Amendment shall bind, and the benefits
hereof shall inure to the parties hereof and their respective successors and
permitted assigns.

SECTION 8. Governing Law. THIS AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

SECTION 9. Severability; Counterparts. This Amendment may be executed in any
number of counterparts and by different parties hereto in separate counterparts,
each of which when so executed shall be deemed to be an original and all of
which when taken together shall constitute one and the same instrument. Any
provisions of this Amendment which are prohibited or unenforceable in any
jurisdiction shall, as to such jurisdiction, be ineffective to the extent of
such prohibition or unenforceability without invalidating the remaining
provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction. Delivery of an executed counterpart of a signature page of
this Amendment by telecopy or other electronic imaging means shall be effective
as delivery of a manually executed counterpart of this Amendment.

SECTION 10. Captions. The captions in this Amendment are for convenience of
reference only and shall not define or limit any of the terms or provisions
hereof.

SECTION 11. “Grandfathered Obligation” under FATCA. For purposes of determining
withholding Taxes imposed under the Foreign Account Tax Compliance Act (FATCA),
from and after the effective date of this Amendment, the Borrower and the
Administrative Agent shall treat (and the Lenders hereby authorize the
Administrative Agent to treat) the Loans as not qualifying as a “grandfathered
obligation” within the meaning of Treasury Regulation Section 1.1471-2(b)(2)(i).

[THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

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IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Amendment as of the date first written above.

PRECISION CASTPARTS CORP.,
as Borrower

By:    /s/ Steve Blackmore            
Name: Steve Blackmore
Title: Vice President and Treasurer

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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BANK OF AMERICA, N.A., as Administrative Agent

By: /s/ Don B. Pinzon                
Name: Don B. Pinzon
Title: Vice President

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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BANK OF AMERICA, N.A., as a Lender, the L/C Issuer and the Swing Line Lender
By: /s/ Jeannette Lu                Name: Name: Jeannette Lu
Title: Vice President

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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CITIBANK, N.A., as a Lender
By: /s/ Susan Olsen    
Name: Susan Olsen
Title: Vice President

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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WELLS FARGO BANK, NATIONAL ASSOCIATION, as a Lender
By: /s/ Gavin S. Holles    
Name: Gavin S. Holles
Title: Managing Director

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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MIZUHO BANK, LTD., as a Lender
By: /s/ Takayuki Tomii    
Name: Takayuki Tomii
Title: Deputy General Manager

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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U.S. BANK NATIONAL ASSOCIATION, as a Lender
By: /s/ Kurban H. Merchant    
Name: Kurban H. Merchant
Title: Vice President

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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PNC BANK, NATIONAL ASSOCIATION, as a Lender
By: /s/ Philip K. Liebscher    
Name: Philip K. Liebscher
Title: Senior Vice President

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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THE BANK OF TOKYO-MITSUBISHI UFJ, LTD., as a Lender
By: /s/ Katie Cunningham    
Name: Katie Cunningham
Title: Vice President

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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JPMORGAN CHASE BANK, N.A., as a Lender
By: /s/ Matthew H. Massie    
Name: Matthew H. Massie
Title: Managing Director

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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BANK OF CHINA, NEW YORK BRANCH, as a Lender
By: /s/ Haifeng Xu    
Name: Haifeng Xu
Title: Executive Vice President

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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BARCLAYS BANK PLC, as a Lender
By: /s/ Kayode Sulola    
Name: Kayode Sulola
Title: Assistant Vice President

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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THE BANK OF NOVA SCOTIA, as a Lender
By: /s/ Eugene Dempsey    
Name: Eugene Dempsey
Title: Director

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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THE BANK OF NEW YORK MELLON, as a Lender
By: /s/ John T. Smathers    
Name: John T. Smathers
Title: First Vice President

Precision Castparts Corp.
5-Year Credit Agreement Amendment No. 3
Signature Page
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EXHIBIT E
FORM OF COMPLIANCE CERTIFICATE

Financial Statement Date: ,

To:
Bank of America, N.A., as Administrative Agent

Ladies and Gentlemen:

Reference is made to that certain Credit Agreement, dated as of December 16,
2013 (as amended, restated, extended, supplemented or otherwise modified in
writing from time to time, the “Agreement;” the terms defined therein being used
herein as therein defined), among Precision Castparts Corp., an Oregon
corporation (the “Borrower”), the Lenders from time to time party thereto, Bank
of America, N.A., as Administrative Agent, a Swing Line Lender and an L/C
Issuer, Citibank, N.A., as an L/C Issuer, and Wells Fargo Bank, National
Association, as a Swing Line Lender and an L/C Issuer.

The undersigned Responsible Officer hereby certifies as of the date hereof that
he/she is the                              of the Borrower, and that, as such,
he/she is authorized to execute and deliver this Compliance Certificate to the
Administrative Agent on the behalf of the Borrower, and that:

[Use following paragraph 1 for fiscal year-end financial statements]

1.    The Borrower has delivered the year-end audited financial statements
required by Section 6.01(b) of the Agreement for the fiscal year of the Borrower
ended as of the above date (or at such time as allowed by the SEC, GAAP or the
Administrative Agent, to reflect a stub financial reporting period as a result
of the Berkshire Acquisition or conversion to a new accounting period aligning
with its Affiliates after the Berkshire Acquisition), together with the report
and opinion of an independent certified public accountant required by such
Section.

[Use following paragraph 1 for fiscal quarter-end financial statements]

1.    The Borrower has delivered the unaudited financial statements required by
Section 6.01(a) of the Agreement for the fiscal quarter of the Borrower ended as
of the above date (or at such time as allowed by the SEC, GAAP or the
Administrative Agent, to reflect a stub financial reporting period as a result
of the Berkshire Acquisition or conversion to a new accounting period aligning
with its Affiliates after the Berkshire Acquisition), which unaudited financial
statements present fairly, in all material respects, the consolidated financial
position of the Borrower and its Consolidated Subsidiaries as of such date.

2.    A review of the activities of the Borrower during such fiscal period has
been made under the supervision of the undersigned with a view to determining
whether during such fiscal period the Borrower performed and observed all its
Obligations in all material respects under the Loan Documents, and, with respect
thereto,

[select one:]

Form of Compliance Certificate
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[to the best knowledge of the undersigned, during such fiscal period the
Borrower performed and observed each covenant and condition of the Loan
Documents applicable to it, in all material respects, and no Default has
occurred and is continuing.]
--or—

[to the best knowledge of the undersigned, during such fiscal period the
following covenants or conditions have not been performed or observed in all
material respects and the following is a list of each such Default and its
nature and status:]

3.    The representations and warranties of the Borrower contained in Article V
of the Agreement (other than Sections 5.04(c), 5.05, 5.11 and 5.12) are true and
correct in all material respects on and as of the date hereof, except to the
extent that such representations and warranties specifically refer to an earlier
date, in which case they are true and correct in all material respects as of
such earlier date, and except that for purposes of this Compliance Certificate,
the representations and warranties contained in subsections (a) and (b) of
Section 5.04 of the Agreement shall be deemed to refer to the most recent
statements furnished pursuant to clauses (a) and (b), respectively, of Section
6.01 of the Agreement, including the statements in connection with which this
Compliance Certificate is delivered.

4.    The financial covenant analysis and information set forth on Schedule 1
attached hereto is true and accurate on and as of the date of this Compliance
Certificate.
IN WITNESS WHEREOF, the undersigned has executed this Compliance Certificate as
of             ,         .
PRECISION CASTPARTS CORP.
By:                     
Name:                     
Title:                     

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For the Quarter/Year ended ___________________ (“Statement Date”)

SCHEDULE 1
to the Compliance Certificate
($ in 000’s)

I.
Section 7.03 –Leverage Ratio.

A.    Indebtedness of the Borrower and its Subsidiaries
at Statement Date:         $__________________________
B.    Stockholders’ Equity at Statement Date: $__________________________
C.    Leverage Ratio (Line I.A ÷ (Line I.A + Line I.B)): _______ to 1.00
Maximum permitted:                         0.65 to 1.00

Form of Compliance Certificate
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