FOURTH AMENDMENT TO
                          REVOLVING CREDIT AGREEMENT

         This FOURTH AMENDMENT TO REVOLVING CREDIT AGREEMENT, dated as of July
26, 2005 (this "Amendment"), is by and among KAMAN CORPORATION, a Connecticut
corporation (the "Company"), the various financial institutions as are or may
become parties hereto (collectively, the "Banks"), and THE BANK OF NOVA SCOTIA
("Scotia Bank") and BANK OF AMERICA, N.A. (as successor by merger to Fleet
National Bank) (individually, a "Co-Administrative Agent" and collectively,
the "Co-Administrative Agents") for the Banks.

         WHEREAS, the Company, the Co-Administrative Agents and the Banks are
parties to a certain Revolving Credit Agreement, dated as of November 13, 2000
(as amended and in effect from time to time, the "Credit Agreement");

         WHEREAS, the Company has advised the Co-Administrative Agents and the
Banks that the Company has entered into an agreement with certain members of
the Kaman family that contemplates a Recapitalization (as defined below).

         WHEREAS, the consummation of the Recapitalization requires that the
Company amend the Credit Agreement.

         WHEREAS, the Company has requested that the Majority Banks amend the
Credit Agreement to permit the Recapitalization, and the Majority Banks have
agreed to make such amendments subject to the satisfaction of the conditions
set forth herein.

         NOW THEREFORE, in consideration of the mutual agreements contained in
the Credit Agreement and herein and for other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties
hereto hereby agree as follows:

         Section 1. Defined Terms. Terms not otherwise defined herein which
are defined in the Credit Agreement shall have the same respective meanings
herein as therein.

         Section 2. Amendments to the Credit Agreement. Subject to the
conditions precedent set forth in Section 3, the Credit Agreement shall be
amended as follows:

         (a) Section 5.7 of the Credit Agreement is hereby deleted in its
entirety and replaced with the following Section 5.7:

         "Section 5.7 Affiliate Transactions. Enter into any transaction with
any Affiliate, except upon fair, reasonable and arm's-length terms, provided
that nothing in this Section 5.7 shall prohibit the Recapitalization."


         (b) Section 9.2 of the Credit Agreement is hereby amended by deleting
the definition of "Change in Control" and restating it in its entirety as
follows:

         "Change of Control" means an event or series of events by which,
following January 1, 2005:

              (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 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 Securities
         Exchange Act of 1934, 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 35% or more of the
         equity securities of the Company entitled to vote for members of the
         board of directors or equivalent governing body of the Company 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);

              (b)  during any period of 24 consecutive months, a majority of
         the members of the board of directors or other equivalent governing
         body of the Company 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 (excluding, in the case of both clause (ii) and clause
         (iii), any individual whose initial nomination for, or assumption of
         office as, a member of that board or equivalent governing body occurs
         as a result of an actual or threatened solicitation of proxies or
         consents for the election or removal of one or more directors by any
         person or group other than a solicitation for the election of one or
         more directors by or on behalf of the board of directors); or

              (c)  any Person or two or more Persons acting in concert shall
         have acquired by contract or otherwise, or shall have entered into a
         contract or arrangement that, upon consummation thereof, will result
         in its or their acquisition of the power to exercise, directly or
         indirectly, a controlling influence over the management or policies
         of the Company, or control over the equity securities of the Company
         entitled to vote for members of the board of directors or equivalent
         governing body of the Company 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) representing 35% or
         more of the combined voting power of such securities;

         provided, that, notwithstanding the foregoing, an event that would
         otherwise constitute a Change of Control under clause (a) or (c)
         above shall be deemed not to have occurred for so long, but only for
         so long, as Charles H. Kaman, his wife, their descendents and
         partnerships or trusts in which they are the sole beneficial owners
         or beneficiaries continue to own and have the sole right to direct
         the voting of securities representing at least a majority of the
         combined voting power of such securities.

              (c) Section 9.2 of the Credit Agreement is hereby amended by
inserting the following new definitions in appropriate alphabetical sequence:

              "Affiliate" means, with respect to any Person, another Person
         that directly, or indirectly through one or more intermediaries,
         Controls or is Controlled by or is under common Control with the
         Person specified."

              "Company Letter" means the letter dated the date hereof from the
         Company to the Co-Administrative Agents and the Banks, relating to
         the recapitalization of the Company.

              "Control" means the possession, directly or indirectly, of the
         power to direct or cause the direction of the management or policies
         of a Person, whether through the ability to exercise voting power, by
         contract or otherwise. "Controlling" and "Controlled" have meanings
         correlative thereto."

              "Recapitalization" means either (i) the "Current
         Recapitalization Proposal", or (ii) the "Substitute Recapitalization
         Proposal", each as defined in the Company Letter.

         Section 3. Conditions to Effectiveness. This Amendment shall be
deemed to be effective as of the date hereof, subject to the satisfaction of
the following conditions precedent:

              (a) receipt by the Co-Administrative Agents of a counterpart
         signature page to this Amendment duly executed and delivered by the
         Company, the Co-Administrative Agents and the Majority Banks;

              (b) such other documents as the Co-Administrative Agents, for
         the benefit of the Banks and the Co-Administrative Agents, may
         reasonably request.

        Section 4. Representations and Warranties. The Company hereby
represents and warrants to the Banks as follows:

              (a) Representation and Warranties in the Credit Agreement. The
         representations and warranties of Company contained in the Credit
         Agreement were true and correct in all material respects as of the
         date when made and continue to be true and correct in all material
         respects on the date hereof, except to the extent of changes
         resulting from transactions or events contemplated or permitted by
         the Credit Agreement and the other Credit Documents and changes
         occurring in the ordinary course of business that singly or in the
         aggregate are not materially adverse to the Company, or to the extent
         that such representations and warranties relate expressly to an
         earlier date.

              (b) Ratification, Etc. Except as expressly amended or waived
         hereby, the Credit Agreement, the other Credit Documents and all
         documents, instruments and agreements related thereto, are hereby
         ratified and confirmed in all respects and shall continue in full
         force and effect. The Credit Agreement, together with this Amendment,
         shall be read and construed as a single agreement. All references in
         the Credit Documents to the Credit Agreement or any other Credit
         Document shall hereafter refer to the Credit Agreement or any other
         Credit Document as amended hereby.

              (c) Authority, Etc. The execution and delivery by the Company of
         this Amendment and the performance by the Company of all of its
         agreements and obligations under the Credit Agreement and the other
         Credit Documents as amended hereby are within the corporate authority
         of the Company and have been duly authorized by all necessary
         corporate action on the part of the Company.

              (d) Enforceability of Obligations. This Amendment and the Credit
         Agreement and the other Credit Documents as amended hereby constitute
         the legal, valid and binding obligations of the Company enforceable
         against the Company in accordance with their terms, except as
         enforceability is limited by bankruptcy, insolvency, reorganization,
         moratorium or other laws relating to or affecting generally the
         enforcement of, creditors' rights and except to the extent that
         availability of the remedy of specific performance or injunctive
         relief is subject to the discretion of the court before which any
         proceeding therefor may be brought.

              (e) No Default. No Default or Event of Default has occurred and
         is continuing. ss.5. No Other Amendments. Except as expressly
         provided in this Amendment, all of the terms and conditions of the
         Credit Agreement and the other Credit Documents remain in full force
         and effect. Nothing contained in this Amendment shall in any way
         prejudice, impair or effect any rights or remedies of any Bank or the
         Company under the Credit Agreement or the other Credit Documents.

         Section 6. Execution in Counterparts. This Amendment may be executed
in any number of counterparts, each of which shall be deemed an original, but
which together shall constitute one instrument.

         Section 7. Expenses. Pursuant to Section 10.1 of the Credit
Agreement, all costs and expenses incurred or sustained by the
Co-Administrative Agents in connection with this Amendment, including the fees
and disbursements of legal counsel for the Co-Administrative Agents in
producing, reproducing and negotiating the Amendment, will be for the account
of the Company whether or not this Amendment is consummated.

         Section 8. Miscellaneous. THIS AMENDMENT SHALL BE DEEMED TO BE A
CONTRACT UNDER THE LAWS OF THE STATE OF CONNECTICUT AND SHALL FOR ALL PURPOSES
BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF
CONNECTICUT (EXCLUDING THE LAWS APPLICABLE TO CONFLICTS OR CHOICE OF LAW). The
captions in this Amendment are for convenience of reference only and shall not
define or limit the provisions hereof.




         IN WITNESS WHEREOF, the parties hereto have executed this Amendment
as a sealed instrument as of the date first above written.


                                        KAMAN CORPORATION



                                        By: /s/ Robert M. Garneau
                                            ---------------------
                                           Name:  Robert M. Garneau
                                           Title: Executive Vice President
                                                  and Chief Financial Officer





                                        BANK OF AMERICA, N.A.,
                                        as a Co-Administrative Agent and the
                                        Administrator


                                        By:/s/ David S. Mecham
                                            ---------------------
                                           Name:  David S. Mecham
                                           Title: Vice President





                                        THE BANK OF NOVA SCOTIA,
                                        as a Co-Administrative Agent


                                        By: /s/ Todd S. Meller
                                            ---------------------
                                           Name:  Todd S. Meller
                                           Title: Managing Director




                                        BANK ONE N.A. (Main Office Chicago),
                                        as Documentation Agent



                                        By: ______________________
                                            Name:
                                            Title:




                                        BANK OF AMERICA, N.A.,
                                        as a Bank and as an Issuer


                                        By: /s/ David S. Mecham
                                            ---------------------
                                            Name:  David S. Mecham
                                            Title: Vice President





                                        BANK OF NOVA SCOTIA,
                                        as a Bank and as an Issuer


                                        By: /s/ Todd S. Meller
                                            ---------------------
                                            Name:  Todd S. Meller
                                            Title: Managing Director




                                        WEBSTER BANK, NATIONAL ASSOCIATION


                                        By: /s/ Peter S. Samson
                                            ---------------------
                                            Name:  Peter S. Samson
                                            Title: Vice President





                                       JPMORGAN CHASE BANK


                                        By: /s/ Peter N. Killea
                                            ---------------------
                                            Name:  Peter N. Killea
                                            Title: Vice President



                                       LEBANESE NATIONAL ASSOCIATION


                                        By: /s/ Suzannah Harris
                                            ---------------------
                                            Name:  Suzannah Harris
                                            Title: Vice President







                             CONSENT OF GUARANTORS


         Each of the undersigned hereby acknowledges and consents to Amendment
No. 4 to Revolving Credit Agreement, dated as of July 26, 2005, and agrees
that each of the Subsidiary Guarantees, dated as of November 13, 2000,
executed by such Person in favor of each of the Bank Parties (as defined
therein), and all of the other Credit Documents to which such Person is a
party remain in full force and effect, and such Person confirms and ratifies
all of its obligations thereunder.


                                       KAMAN AEROSPACE GROUP, INC.


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer



                                       KAMAN INDUSTRIAL TECHNOLOGIES
                                         CORPORATION


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer



                                       KAMAN MUSIC CORPORATION


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer



                                       KAMAN AEROSPACE CORPORATION


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer



                                       KAMAN AEROSPACE INTERNATIONAL
                                         CORPORATION


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer



                                       KAMATICS CORPORATION


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer



                                       KAMAN X CORPORATION


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer



                                       KMI EUROPE, INC.


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer



                                       K-MAX CORPORATION


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer




                                       KAMAN PLASTICFAB GROUP, INC.


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer



                                       PLASTIC FABICATING COMPANY, INC.


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                         Name:  Robert M. Garneau
                                         Title: Vice President and Treasurer



                                       KAMAN DAYRON, INC.


                                       By: /s/ Robert M. Garneau
                                           ---------------------
                                          Name:  Robert M. Garneau
                                          Title: Vice President and Treasurer