1、MIL-I-BSOOD MI m 7979906 03760b6 7 m . MIL-I-8500D 25 March 1980 Superseding MIL-I-8500C 5 November 1971 MILITARY SPECIFICATION INTERCHANGEABILITY AND REPLACEABILITY OF COMPONENT PARTS FOR AEROSPACE VEHICLES This specification is approved for use by all Departments and Agencies of the Department of
2、Defense 1. SCOPE 1.1 Scope. This specification establishes the dimensional inter- changeability and replaceability requirements for certain parts, subassemblies, assemblies, units, sets, and installation provisions for aerospace vehicles (see 6.1), as listed herein, and which are controlled items as
3、 defined in paragraph 6.2.2. This specification applies to the aerospace vehicle and other elements as may be defined herein, which are peculiar and must be integrated to pro- vide an operational weapon capable of effectively meeting the established performance requirements. These requirements are e
4、stablished to provide or promote easy and rapid assembly of controlled items manufactured by one or more sources, minimize logistic requirements, assure usable parts; and conserve resources. It is mandatory that interchangeability in accordance with this specification shall be a design requirement d
5、uring development of an article. This specification shall be strictly complied with when incorporated (a) into any production contract for aerospace vehicles, and (b) into any aerospace vehicle development contract when such development will proceed to production, unless otherwise specified in any s
6、aid contract. 1.2 Classification. Interchangeability and replaceability as defined and specified herein shall be indicated for a specific article in terms of Interchangeability-Replaceability Working Lists. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on the date of inv
7、itation for bids or request for proposal form a part of this specification to the exten specified herein. SPECIFICATIONS Militarv MIL-9-9858 Quality Program Requirement FSC-MISC Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3 _ . _ MIL-I-8500D MI m
8、 7777706 0376067 7 W MIL-I-8500D DoD-D-1000 Drawings, Engineering, and Associated Lists STANDARDS Military DoD-STD-100 Engineering Drawing Practices MIL-STD-280 Definitions of Item Levels, Item Interchangeability, Models, and Related Terms MIL-STD-480 Configuration Control - Engineering Changes, Dev
9、iations, and Waivers (Copies of specifications and standards required by contractors in connection with specific procurement functions should be obtained from the procuring officer.) 3. REQUIREMENTS 3.1 Interchangeability and Replaceability. This specification sets forth certain controlled parts, su
10、bassemblies, assemblies, units, and sets (as defined in MIL-STD-280), installation provisions for equipment, major and minor segments of the airframe manufactured separate for later assembly or mating, for which interchangeability and replaceability as defined is required. 3.2 Working lists. Working
11、 lists of such controlled items listing part numbers, nomenclature, and proposed status of the items, shall be complied by or under the supervision of the prime design contractor and submitted progressively to the procuring activity, beginning prior to preliminary fabrication of production tools and
12、 items, for review and evaluation. The complete working list shall be submitted to the procuring activity for approval on a semi- annual basis and after all controlled items therein, subject to first article inspection (see 4.3), have been certified, and shall be approved prior to acceptance of the
13、first aerospace vehicle. The working lists, after approval by the procuring activity, shall reference this specification and shall be considered as meeting the specific requirements of paragraph 3.3.1 and 3.3.2 thereof, and shall be incorporated by reference in the set of engineering drawings (see 3
14、.4) and contract specifications defining the aero- space vehicle configuration. Working lists shall be kept current, during the extent as specified in paragraph 3.5, reflecting design changes, additions, deletions, and aerospace vehicle effectivity serial numbers. Revisions shall be limited to affec
15、ted pages only and there shall be no reissue of existing pages with date change only. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-8500D 3.2.1 Forms. The working list pages, listing controlled items, shall be prepared on contractor furnish
16、ed forms in a format con- forming to Figure 1. Requests for additions, changes, and devia- tions to specification requirements, shall be prepared on con- tractor furnished forms in a format conforming to Figure 2. The size of all working list pages shall be comparable to either 8% x 11 or 11 X 17 in
17、ch size and shall be kept uniform throughout any current working list. 3.2.2 Contents. The contents of the working list shall include, but not be limited to; a preface, an index list of page numbers, and pages listing items controlled. The preface shall identify the contractor and location, contract
18、 number, type/model/series of aerospace vehicles with serial numbers assigned, I supported by drawings, sketches, diagrams, and interface data, as applicable; and identification of special tools for installation, if required. A statement of general requirements or criteria, e.g., “aerodynamic smooth
19、ness requirements“, is not an explana- tory reason why the contractor cannot produce an item to meet that requirement and is not satisfactory for evaluation for approval. When approval for exceptions is requested, the remarks column shall be used to give the following information (as appli- cable):
20、justification as required above; type and amount of rework prior to installation; actual (or estimated) manhour requirements involved in rework; special tools for installation, if required. When prior approval of exceptions has been granted, a reference to the procuring activitys correspondence gran
21、ting approval of exceptions shall be entered in the remarks column. Likewise, references shall be made to the procuring activitys directives to depart from the specification required status. Items required replaceable as defined in paragraph 3.3.2, shall have listed in the remarks column; type and a
22、mount of rework Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-8500D I MIL-I-8500D MI 9 77777Ob 037bOb7 2 9 I P: 8 E-l 3 E o O Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-14500 Provided
23、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-8500D MI 7777706 0376073 O m MIL-I-8500D required prior to installation; actual (or estimated) manhour requirements involved in rework: special tools for installation, if required. 3.2.2.1 New entries or
24、changes. A new entry, or a previously listed entry which has been changed subsequent to approval of the complete working list, shall be identified by an asterisk. All new entries and changes submitted to the procuring activity for approval (see 3.2.1), may be one or more of the following: change in
25、part number, name, status, effectivity, remarks, or notations of. approval. 3.2.3 Submission. Working lists and changes thereto, furnished in accordance with this specification, shall be subject to ini- tial inspection by the Government quality assurance represent- ative. Obvious irregularities will
26、 be returned to the contractor for correction prior to forwarding to the procuring activity for approval. 3.2.4 Approval. Approval of the working list, including changes to the working list, and approval of exceptions once granted, are subject to review, revocation, and further negotiation at the re
27、quest of the procuring activity as improved tooling techniques, controls, and facilities are established, or as maintenance and logistics experience dictates. Applicable contracts will be reviewed and modified by the parties to incorporate approved changes. 3.3 Controlled items. All controlled items
28、, as defined in para- graph 6.2.2, shall be manufactured in accordance with the prime design contractors engineering data and information, and in strict conformity with all control media established by the prime design contractor, as incorporated into applicable contracts. Subject to the provisions
29、of paragraph 3.6.2, all controlled items coming from any approved source, shall be in the same interchangeable or replaceable status as specified in the prime design contractors approved working list and shall mate with adjacent items furnished by the same source or any other approved manufacturing
30、source. 3.3.1 Interchangeability. Interchangeable controlled items shall comply with the definition established in paragraph 6.2.4. Shimming of an interchangeable item is allowed when approved by the procuring activity, and shall not be justification for class- ifyingan item as replaceable. Only tho
31、se tools generally avail- able to aerospace vehicle mechanics shall be required for instal- lation procedure. (This is not intended to preclude use of special tools, fixtures and other shop aids during original assembly of items in the article). All check installations of controlled items shall prov
32、ide for the maximum outline dimension- al requirements of the particular item involved, as set forth in the applicable specifications or drawings. Jacking or other 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-8500D force applications using
33、 conventional equipment is allowable only to the extent necessary to position items for installation, and shall not be used for forcing alignment when such forcing causes permanent deformation or distortion, tearing, shearing, bending, or damage to the item being checked or installed, or to any adja
34、cent items of the assembly or article on which a physical check for fit is being conducted. When controlled items contain controls, wiring, hydraulic lines, etc., interchangeability shall be provided at the attachments of these items to their next assembly, as well as for the structural attachments
35、of the assem- bly. The following controlled items, as may have been incorpor- ated into the design of the aerospace vehicle, shall be inter- changeable with respect to any identical item conforming to the engineering data, tooling information, and control media estab- lished by the prime design cont
36、ractor for the particular aero- space vehicle on contract: a. Fixed, variable incidence, and variable sweep wing aircraft Aerial refueling assemblies Aileron assemblies Air canditioning system units Air inlet rams Armament supporting prts and attachment fittings, brackets, etc. Arresting gear and ba
37、rrier gear Aspirators Auxiliary aerodynamic surfaces Auxiliary fuel tanks and fittings Bomb bay doors Cargo pods Cockpit enclosure (units and subassemblies thereof) Catapult hooks Control columns Control horns, masts, and brackets where attached by bolts Provided by IHSNot for ResaleNo reproduction
38、or networking permitted without license from IHS-,-,-flIL-I- no change shall be made by one manu- facturing source without the same change being made by all other manufacturing sources of the same item. The requirements of paragraph 3.2.2 shall apply to all changes. 3.6.3.1 Submittal of changes. Req
39、uests for design changes shall be in accordance with MIL-STD-480. Approval of a request for design change shall constitute authority to effect said change only, and shall not finalize the interchangeability or replace- ability status of the item(s) involved. Finalizing the status of the item(s), and
40、 other changes, shall be processed as specified herein. 3.6.3.2 Emergency deviations. Requests for emergency deviations to working lists may be made by teletype, telephone, personal contact, or other expeditious means. All communications shall be identified by the I and the fact that the Government
41、may have formulated, furnished, or in any way supplied the said drawings, specifications, or other data are 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 p
42、atented invention that may in any way be related thereto. Custodians: Preparing Activity: Army- AV Air Force-99 Navy“- AS (Project MISC-OCOG) Air Force-99 Reviewer Activity *US. GOVERNMENT PRINTING OFFICE: 1980 - 603-121/1421 22 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
