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                        FIRST AMENDMENT TO THIRD AMENDED
                          AND RESTATED LOAN AGREEMENT



                 This First Amendment to Third Amended and Restated Loan
Agreement (the "Amendment") dated as of June 30, 1995, is between Bank of
America National Trust and Savings Association (the "Bank") and Ducommun
Incorporated (the "Borrower").

                                    RECITALS

                 A.  The Bank and the Borrower entered into that certain Third
Amended and Restated Loan Agreement dated as of January 20, 1995 (the
"Agreement").

                 B.  The Bank and the Borrower desire to amend the Agreement.

                                   AGREEMENT

                 1.  Definitions.  Capitalized terms used but not defined in
this Amendment shall have the meaning given to them in the Agreement.

                 2.  Amendments.  The Agreement is hereby amended as follows:

                          2.1  In Schedule 1 of the Agreement, the definition
         of "Expiration Date" is amended by deleting the date "July 15, 1996"
         therefrom, and inserting the date "July 15, 1997" in its stead.

                          2.2  In Subparagraph 1.12(e) of the Agreement, the
         period at the end of item (ix) of the definition of "Excess Cash Flow"
         is deleted and the following substituted therefor:

                                  ", (x) minus any voluntary Commitment 
                          reduction for that fiscal period."

                          2.3     In Subparagraph 1.12(e) of the Agreement,
         item (i) of the definition of Cash Flow is amended and restated in its
         entirety to read as follows:

                                  "(i)  Minus any increase (and plus any
                          decrease) in Working Capital over that fiscal period
                          (excluding $1,800,000 of the Working Capital
                          Advances),"

                          2.4  In Subparagraph 1.12(e) of the Agreement, item
         (iii) of the definition of "EBITDA" is amended and restated in its
         entirety to read as follows:

                                  "(iii) provisions for taxes accrued in that 
                          fiscal period,"

                          2.5  The following Subparagraph (h) is added to 
         Paragraph 1.12 of the Agreement:

                                  "(h)  Interim permanent prepayments of
                          Acquisition Advances outstanding under the Commitment
                          are permitted at the Borrower's option and will be
                          applied; (i) first to the next scheduled principal
                          payment within the calendar quarter, and (ii) then





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                          to scheduled principal payments in the inverse order
                          of their maturity and the Commitment shall
                          concurrently be reduced by the amount of any such
                          prepayments."

                          2.6     In Paragraph 7.2 of the Agreement,
         Subparagraph (f) is amended and restated in its entirety to read as
         follows:

                                  "(f) Updated projections for the Borrower and
                          its Subsidiaries (prepared on a consolidated and
                          consolidating basis) as follows: (i) within 60 days
                          prior to the end of each Fiscal Year on an annual
                          basis for the subsequent Fiscal Years through
                          December 31, 1998, and (ii) within 30 days after the
                          end of each Fiscal Year the annual operating plan for
                          the current Fiscal Year, on a monthly basis; such
                          projections required by (i) and (ii) above to be in
                          form and detail satisfactory to the Bank, and each
                          one to be submitted together with the certification
                          of the Borrower's chief financial officer stating
                          that the projections are based on facts known to the
                          Borrower and on assumptions that are reasonable and
                          consistent with such facts, that no material (in
                          amount and likelihood) fact or assumption has been
                          omitted as a basis for such projections which, in the
                          Borrower's reasonable business judgment, should be
                          included, and that such projections are reasonably
                          based on such facts and assumptions."

                          2.7  In Paragraph 7.3 of the Agreement, Subparagraphs
         (a) and (b) are amended and restated in their entirety to read as
         follows:

                                  "(a)  Twenty Four Million Dollars 
                          ($24,000,000); plus

                                  (b)  90% of the net income after income taxes
                          (without subtracting losses) earned in each Fiscal
                          Quarter commencing March 31, 1995; minus

                                  (c)  any earnout payments to former Brice and
                          3DBM stockholders in connection with the Brice
                          acquisition or the 3DBM acquisition, if such earnout
                          payments are capitalized."

                          2.8  In Paragraph 7.4 of the Agreement, the ratios
         required for the periods are amended and restated in their entirety to
         read as follows:



                                              Period                                   Ratio
                                              ------                                   -----
                                                                                  
                                  the date hereof through
                                  December 30, 1995                                  1.65:1.00

                                  December 31, 1995 through
                                  December 30, 1996                                  1.40:1.00

                                  December 31, 1996 through
                                  December 30, 1997                                  1.10:1.00

                                  December 31, 1997 through
                                  December 31, 1998                                   .90:1.00





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                          2.9  In Paragraph 7.5 of the Agreement, the lead in
         paragraph is amended and restated in full to read as follows:

                                  "7.5  Quick Ratio.  To maintain, on a
                          consolidated basis as of the end of each month, a
                          ratio of selected current assets to selected current
                          liabilities of at least 0.55:1.00 commencing June 30,
                          1995 and at all times, calculated in accordance with
                          GAAP consistently applied."

                          2.10  In Paragraph 7.6 of the Agreement, the ratios
         required for the periods are amended and restated in their entirety as
         follows:



                                           Period                              Ratio
                                           ------                              -----

                                                                          
                                  the date hereof through
                                  June 29, 1995                              1.10:1.00

                                  June 30, 1995 through
                                  December 30, 1995                          1.08:1.00

                                  December 31, 1995 through
                                  March 30, 1997                             1.15:1.00

                                  March 31, 1997 through
                                  March 30, 1998                             1.20:1.00

                                  March 31, 1998
                                  and at all times                           1.25:1.00



                          2.11  The following is added to Subparagraph 7.6(a) 
         of the Agreement:

                                  "minus (x) earnout payments in connection
                          with the Brice acquisition or the 3DBM Acquisition, 
                          if such earnout payments are capitalized;"

                 3.  Representations and Warranties.  When the Borrower signs
this Amendment, the Borrower represents and warrants to the Bank that:  (a)
there is no event which is, or with notice or lapse of time or both would be, a
default under the Agreement, (b) the representations and warranties in the
Agreement are true as of the date of this Amendment as if made on the date of
this Amendment, (c) this Amendment is within the Borrower's powers, has been
duly authorized, and does not conflict with any of the Borrower's
organizational papers, and (d) this Amendment does not conflict with any law,
agreement, or obligation by which the Borrower is bound.

                 4.  Effect of Amendment.  Except as provided in this
Amendment, all of the terms and conditions of the Agreement shall remain in
full force and effect.

                 This Amendment is executed as of the date stated at the
beginning of this Amendment.





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                             BANK OF AMERICA NATIONAL TRUST
                             AND SAVINGS ASSOCIATION


                             By:________________________________
                                  J. Thomas Fagan
                                  Vice President



                             DUCOMMUN INCORPORATED


                             By:________________________________
                                  Joseph C. Berenato
                                  Executive Vice President, Chief
                                  Operating Officer and Chief
                                  Financial Officer


                             By:________________________________
                                  James S. Heiser
                                  Vice President and
                                  Secretary





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