1、x-:. MIL-B-71132 13 W 779990b 0534418 3 = LINGLJ MIL-8-71132 (AR) 26 May 1992 MILITARY SPECIFICATION BODY ASSEMBLY, 81MM, FOR CARTRIDGE, PRACTICE, M880 This specification is approved for use by the U.S. Army Armament munitions and Chemical Command, and is available for use by all Departments and Age
2、ncies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements and quality assurance provisions for manufacture and acceptance of Body, Projectile, 81MM, for use in Cartridge, Practice M880. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications an
3、d standards. The following specifications, standards and handbooks form a Dart of this document to the extent specified herein. specified, the issues of these documents shall be those listed in the issue of the Department of Defense index of Specifications and Standards (DODISS) and supplement there
4、to, cited in the solicitation (see 6.2). Unles; otherwise SPECIFICATIONS MI LI TARY MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification for Eeneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in inproving this docu
5、ment, should be addressed to: Commander U.S. Army ARDEC, ATTN: SMCAR-BAC-S, Picatinny Arsenal, New Jersey 07806-5000 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC NIA FSC 1315 l2JSBEWTION STATE5 iENT
6、4, Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-71132 13 W 9999906 053Li419 5 MIL-B-71132 (AR) STANDARDS MILITARY MIL-STD-109 .- Quality Assurance Terms and Definitions MIL-STD-1169 - P
7、ackaging, Packing and Marking for Shipment of Inert Ammunition Components (Unless otherwise indicated, copies of federal and Military specifications, standards and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.
8、1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation. DRAWINGS (See
9、 6.5) U.S. ARMY ARMAMENT, RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) 12944195 .- Body Assembly (Copies of other Government documents, drawings, and publications, and other Government documents required by contractors in connection with specific acquisition functions should be obtained from
10、 the contracting activity or as directed by the contracting officer.) 2.2 Non-Government publications, The following document(s) form a part of this document to the extent specified herein. otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DO
11、DISS cited in the solicitation. not listed in the DODISS are the issues of the documents cited in the solicitation (see 6,2). Unless Unless otherwise specified, the issues of documents ASTM Method E-8 - Tension Testing o Metallic Materiais Technical society and technical association specifications a
12、nd standards are generally available for reference rom libraries. They are also distributed among the technical groups and using Federal Agencies. In the event af a conflict between the text of this document and the references cited herein, of this document shall take precedence. however, shall supe
13、rsede applicable laws and regulations unless a specific exemption has been obtained. 2.3 Order of precedence, the text Nothing in this document, 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-r“ .* MIL-B-71132 13 W 9Ob 0534420 1 W MIL-B-71132 (AR)
14、 3. REQUIREMENTS 3.1 Materials. Materials shall be in accordance with the applicable drawings and specifications. Projectiles shall be free of defects such as cracks, splits, porosity, shrinkage, cold shuts, pipe-type defects, planar defects, and inclusions. 3.2 Components and assemblies. The compon
15、ents and assemblies shall comply with all requirements specified on drawing 12944199 and associated drawings and with all reqirements specified in applicable specifications and standards. 3.3 Mechanical properties. Mechanical properties shall be in accordance with the requirements of the applicable
16、drawings and specifications. 3.4 First article. This specification contains technical provisions for first article inspection. Requirement for the submission of first article samples by the contractor shall be specified in the contract (See 4.3 and 6.2). 3.5 Workmanship. The projectiles shall be fre
17、e from dirt, chips, grease and other foreign matter. There shall be no cracks, scratches, dents, gouges, holes, porous areas, distortion, or undesirable characteristics which would in any way detract from usability of the product for its intended purpose. Parts and assemblies shall be free from all
18、contaminants and damage after 0 cleaning. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of ail inspection requirements (examinations and tests) as specified herein. Ex
19、cept as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspection
20、s set forth in the specifications where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- . _l_l I- _-_ MIL-B-71132 13 M 9999706 0534423 3 M .
21、*- -2- MIL-B-71132 (AR) 4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5. The inspections set forth in this spcification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in th
22、e specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection as part of manufacturing operations, is an acceptable practice to ascertain co
23、nformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. 4.1.2 General provisions. The requirements of MIL-A-48078 form a part of the quality assurance provisions of
24、 this specification. Reference shall be made to MIL-STD-109 to define quality assurance terms used herein. 4.2 Classification of inspections. The following types of inspections shall be conducted on this item: a. F.irst Article Inspection (see 4.3) b. Quality Conformance Inspection (see 4.4) 4.3 Fir
25、st article inspection. 4.3.1 Submission. The contractor shall submit a first article sample as designated by the contracting officer for evaluation in accordance with provisions of 4.3.2. The first article sample shall consist of the components in the quantities indicated in Table I. 4.3.2 Inspectio
26、ns to be performed. See MIL-A-48078 and Table I specified herein. 4.3.3 Rejection, See MIL-A-48078, 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-rl LL O rl Q E a I) I) 4 h MIL-B-71132 13 9999906 053YY22 5 %-I N m N N N w * -i+ * * * . . . . * .
27、0 * . N (u N m m m . * . O O O 4 4 4 I) I) I) c, c, c, u u u a, a, a, ici ici w a, a ai a a a 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I _ ._. _ MIL-B-7LL32 13 W 9999906 0534423 7 W MIL-B-71132 (AR) 4.4 Quality conformance inspection. 4.4.1
28、Inspection lot formation. . Inspection lots shall comply with the lot formation provisions of MIL-A-48078. 4.4.2 Examinations and tests. a. Classification of characteristics. Quality conformance examinations and tests are specified in the following Classification of Characteristics paragraph: . The
29、contractor s quality program or detailed inspection system shall provide assurance of compliance of all characteristics with the applicable drawing and specification requirements utilizing as a minimum the conformance criteria specified herein. Where cited herein, attributes sampling inspection shal
30、l be conducted in accordance with TABLE II below, using the inspection levels cited in the Classification of Characteristics paragraphs: TABLE II. Attributes sampling inspection, INSPECTION LEVELS VI _I IV V LOT SIZE I II III - 2 to 8 9 to 15 16 to 25 26 to 50 51 to 90 91 to 150 . 151 to 280 281 to
31、500 501 to 1200 1201 to 3200 3201 to 10000 10001 to 35000 35001 to 150000 150001 to 500000 500001 and above * * * * * * * * * 1250 1250 1250 1250 1250 1250 * * * * * 125 125 125 125 125 125 315 315 500 500 * * * 32 32 32 32 32 80 80 125 125 125 200 200 * 5 13 5 13 5 13 5 13 5 13 13 13 13 32 20 50 20
32、 50 32 50 32 80 50 80 50 125 50 125 50 3 3 3 3 3 5 5 8 13 13 13 13 13 13 13 Number under inspection levels indicate sample size; asterisks indicate one hundred percent inspection. size, perform one hundred percent inspection. Accept on zero and reject on one or more for all inspection levels. If sam
33、ple size exceeds 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.-e- n MIL-B-71132 13 W 9999906 0534424 9 MIL-8-71132 (AR) b. Alternative quality conformance provisions. Unless otherwise specified herein or provided for in the contract, alternativ
34、e-quality conformance procedures, methods or equipment, such as statistical provess control, tool control, other types of sampling plans, etc., may be used by the contractor when they provide, as a minimum, the level of quality assurance required by the provisions herein. procedures, methods or equi
35、pment, the contractor shall describe them in a written proposal submitted to the Government for evaluation (see 6.6). When required, the contractor shall demonstrate that the effectiveness of each proposed alternative is equal to or better than the specified quality conformance provision(s) herein.
36、In case of dispute as to whether the contractors proposed alternative(s) provides equivalent assurance, the provisions of this specification shall apply. All approved alternative provisions shall be specifically incorporated into the contractors quality program or inspection system, as applicable. P
37、rior to applying such alternative 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-k a, cr 2 rl D* E. ShI 3.: MIL-B-71132 13 9999906 0534425 O a a, G Yi 4-i a, a rl E ? E rll U aJ v) 3 aJ n c, O S 2 E r u c 3 m Co 8 Provided by IHSNot for ResaleNo r
38、eproduction or networking permitted without license from IHS-,-,-MIL-B-71132 13 999990b 053442b 2 W a 2 O w u w pi v) W n w u 2 4 O Fri 2 ag N LL O rl ti I VI W -I + t ?-i a O a mmm NNNN NNN N NN NNN c mmm mmmm mmm m mm mmm r e e. .e. . 0 dp HHH H HH HHO C -H HHHH H HHH H HH “0 C m*H HHHH HHH H HH H
39、Hrl C N rdQ a a G FI 4-i a, a a, G a . n rl (u in * a, a, v) e3 c, G O G k O u o u1 k 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-71132 13 W 99999Ob 0534428 b a rl L O rl ti W I v) HH HHH 33 HH HH HHH k bal GC, a a, 4 5 O x a mmc, 3.i m
40、me dl Ul 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ _ _ - MIL-B-7LL32 L3 9999906 0534429 8 D MIL-B-71132 (AR) 4.4.3 Testing. See 4.5. 4.4.4 Inspection equipment. The inspection equipment required to perform the examinations and tests prescr
41、ibed herein is described in the !Paragraph Reference/Inspection Methodf1 column in the tables starting with paragraph 4.4.2.1. The contractor shall submit for approval inspection equipment designs in accordance with the terms of the contract. See Section 6 of MIL-A-48078 and 6.3 herein. 4.5 Methods
42、of inspection. 4.5.1 Materials, components and processes. Compliance with all requirements of Section 3 of this specification shall be ascertained by current and continuing examination of inspection and test data to determine that all components and materials have been inspected and tested and found
43、 to comply with their respective drawing and specification requirements, and that all specified manufacturing processes have been followed. 4.5.1.1 Visual and mechanical inspection. The visual and mechanical inspections shall verify compliance with requirements of Sections 3 and-5 of this specificat
44、ion in accordance with 4.4.2 herein and Table I. 4.5.2 Hardness test. 4.5.2.1 Requirement. Each basic melt ladle, whichever is the smaller, 25 projectiles shall be randomly selected and tested for relative hardness. Projectiles shall be tested in the zone where the obturating band groove will later
45、be machined. softest projectiles from this group shall be subjected to tension testing in accordance with 4.5.3. automated hardness tester which will produce accurate repeatable results with readings for an acceptable projectile between 25-80% of the full scale capability of the test equipment. proc
46、edures shall be as specified by the applicable equipment manual, standard ASTM test methods and the following subject to approval by the Government representative: The hardest and 4.5.2.2 Test procedure. The test shall be performed using any Operating a. The hardness tester calibration shall be test
47、ed,at start up, at least one each four hours of continuous operation, and after a layoff of three or more hours. b. The body shall be fixtured so that no rocking, shifting or deflection of the body will occur during the test. 12 Provided by IHSNot for ResaleNo reproduction or networking permitted wi
48、thout license from IHS-,-,-.-, Nl- MIL-B-71132 13 9999906 0534430 4 MIL-B-71132 (AR) c. The hardness tester shall not produce indentations deeper than 25% of the indentor ball diameter or wall thickness of the projectile in that zone. d. Hardness readings shall be taken at least ten indentor ball di
49、ameters apart. At least two readings shall be taken per projectile and averaged. Impressions shall be completely removed on final machining. 4.5.3 Tensile test. Two specimens each shall be fabricated from the hardest and softest projectiles from the hardness test in 4.5.2. The specimens shall be the largest round specimens obtai
