1、_- MILITARY SPECIFICATION - CASE, CARTRIDGE, 9OMM, M108B1 MIL-C-48565 (MU) 15 April 1975 SUPERSEDING FA-PD-MI-2537, Rev. 1 30 April 1965 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 This specification covers Case, Cartridge, 9OMM,
2、M108B1. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect of date of invitation for bids, or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS Military MIL-A-2550 -Ammunition and Special Weapons, General Specifications for
3、 STANDARDS Military MIL-STD-105 MIL-STD-109 MIL-STD-1235 MIL-STD-1167 MIL-STD-1168 MIL-STD-1169 -Sampling Procedures and Tables for Inspection -Quality Assurance Terms and Definitions -Single and Multilevel Continuous Sampling Procedures and Tables for Inspection by Attributes by Attributes -bunitio
4、n Data Card -Lot numbering of Ammunition -Packaging, Packing, and Marking for shipment of inert Armnunition Components FSC - 1315 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-C-q565 13 W 7797706 0323665 7 W MIL-C-48565 (MU) DRAWNGS I Armament
5、 Command F7548028 -Case, Cartridge, 9OMM, Ml8Bl F7548235 -Cartons, Armnunitions for Interplant Shipment I of Steel Cartridge Cases, 37MM to 12OMb1, inclusive 9OMM, M108B1 -Inspection Equipment List for Case, Cartridge LI-7548028 (Copies of specification, standards, drawing and publications required
6、by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) I 2.2 Other Dubicati0ns.- The followine documents form a Dart of this specification to the extent specified herein. Unless otherwise indicated,
7、the issue in effect on date of invitation for bids or request for proposal shall 1 apply ANSI - B46.1 I -Surface Texture (Application for copies should be addressed to the American National Standards Institute (ANSI), 1430 Broadway, New York, N.Y. 10018.) ASTM Method -American Standards for testing
8、and materials I (Application for copies should be addressed to the American Standards for Testing and Materials, 1916 Race Street, Philadelphia, Pa. 19103.) ASTM Method E-8 ASTM Method E-18 -Test for Rockwell Hardness and Rockwell ASTM Method A317 -Macro-etch Testing and Inspection of Steel I -Tensi
9、on testing of Metallic Materials Superficial Hardness of Metallic Materials Forgings (Application for copies should be addressed to the American Society for testing and materials, 1916 Race Street, Philadelphia, Pa. 19103.) I I 3. REQUIREMENTS I 3.1 General.- The cartridge case shall comply with the
10、 requirements of the applicable drawings, referenced specifications and the following. 3.2 Material.- The contractor shall be responsible for selecting from the classification list contained in the raw material specification, the surface ana physical condition of the raw material intended for use in
11、 manufacture. I 3.3 Mechanical DroDerties.- The mechanical Dronerties SDecified on the I applicable drawing and referenced specifications shall be uniform throughout 1 each section. I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-485b5 13 m 9
12、779706 O323666 7 m MIL-C-48565 (MU) 3.3.1 Thermal treatment.- After heading operation, the entire cartridge case shall be subjected to a thermal temperature by heating above the upper. critical temperature point, quenching and tempering to the desire properties. 3.4 Stress relief.- The cartridge cas
13、e shall be adequately stress relieved at the times and temperatures suitable for development of desired properties. 3.5 protective coating.- Protective coating as specified on the applicable drawing and referenced specifications shall apply to all surfaces of the cartridge case regardless of contour
14、 configuration. 3.6 Maximum profile.- The maximum profile of the cartridge case shall comply with the requirements of the applicable drawing. 3.7 Functional.- The cartridge case shall be subjected to a functional test in the following phases: Excess Pressure Phase Cold Temperature Phase Excess, Exce
15、ss Pressure Phase (for information only) Obturation.- The cartridge case shall effectively seal the breech 3.7.1 of the weapon against gases generated during firing. (info only) 3.7.2 Soundness.- After firing, the cartridge case shall be free of cracks or splits except as permitted by Table IL. 3.7.
16、3 Ejection.- After firing, the cartridge case shall be ejected by the service extractors when the weapon is operated in the normal manner (See 6.3). 3.7.4 Primer retention.- The cartridge case shall retain its primer during firing and ejection. 3.8 WorkmanshiE.- The requirements for workmanship are
17、as specified on the applicable drawings, referenced specifications and the following. 3.8.1 Metal defects.- The cartridge case shall be free from cracks, blisters, seams, laminations, deep scratches and porosity. 3.8.1.1 Flow of metal.- The flow of metal in the section of the cartridge case joining
18、the head and the sidewall shall follow the direction of the contour of the interior curved surface without folds, cold shuts or roughness. 3.8.1.2 Visual standards.- Visual standards for metal defects will be established for each contract after the first three months production. of visual standards
19、will not waive the intent of the requirement for compliance with 3.8.1 and 3.8.1.1 (See 6.4) However, establishment 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-4565 13 M 777770b 032Lbb7 O M MIL-C-48565 (MU) 3.8.2 s.- No cartridge case sha
20、ll have a burr which might interfere with the assembly of the primer or projectile, or which might be injurious to personnel handling the cartridge case. 3.8.3 Foreign matter.- No cartridge shall contain chips, dirt, grease, oil, rust, corrosion, or other foreign matter during inspection or testing
21、and prior to shipping. 4, QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection.- Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements specified herein, utilize his own facilities or any comercial labora
22、tory acceptable to the Government. The Government reserves the right40 prform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Except otherwise specified, the supplier may 4.1.1 Quali
23、ty Assurance Terms and Definitions.- Reference shall be made to . MIL-STD-109 to define Quality Assurance Terms used. 4.1.2 Inspection,- Inspection shall be in accordance with MIL-A-2550, except as specified herein. 4.2 First Article Sample. 4.2.1 Initial production sample.- At the beginning of regu
24、lar production, a sample shall be submitted in accordance with contract requirements and shall consist of 274 cartridge cases as follows: 254 coated 20 uncoated The sample shall be manufactured using the same materials, equipment,processes, and procedures as will be used in regular production. inclu
25、ding packaging and packing, shall be the same as used for regular production and shall be obtained from the same source of supply. or portion thereof as directed by the procuring agency shall also be submitted whenever there is a lapse in production for a period in excess of 90 days or whenever a ch
26、ange occurs in manufacturing processes, materials used, drawing or source of supply, such as to significantly affect product uniformity as determined by the responsible technical agency. All parts and materials, A first article sample 4.2.1.1 Examination and test.- After inspection and provisional a
27、cceptance at source, 250 of the coated cases shall be forwarded to a designated proving ground as specified on the contract. shall be inspected for all the requirements of the drawings and specifications at a Government laboratory or such other facility as specified in the contact. Four of the coate
28、d cases and 20 uncoated cases 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48565 L3 7777706 O323668 2 I MIL-C-48565 (MU) 4.2.1.2 with requirements of the drawings and specifications shall result in sample disapproval, 4.3 Initial productio
29、n sample failure.- Failure of the sample p1y Inspection provisions, test methods and procedures, 4.3.1 Lot. 4.3.1.1 Lot identification.- Each cartridge and each packed ammunition lot shall be identified in accordance with applicable drawings and MIL-STD-1168. 4.3.1.2 Submission of product.- The prod
30、uct shall be submitted in accordance with MIL-STD-105. 4.3.1.3 Mechanical properties. 4.3.1.3.1 Hardness (test sample).- Twenty cartridge cases from the initial production sample and fourcartridge cases from each production lot shall be subjected to this test. Failure of one or more cartridge cases
31、to comply with the requirements of the applicable drawing shall be cause for rejection of the sample lot. 4.3.1.3.2 Hardness (test method).- This test shall be performed on locations specified by the applicable drawing in accordance with the procedures for Rockwell Hardness Testing prescribed by AST
32、M Method E-18. 4.3.1.3.3 Thermal treatment (test sample).- Each cartridge case shall be subjected to a hardness comparator test; with the requirements of 3.3.1 or indications that the cartridge case failed to harden shall be cause for rejection. Failure of the cartridge case to comply 4.3.1.3.4 Ther
33、mal treatment (test method).- This tese shall be performed on a hardness comparator of non-destructive type approved by the technical agency. 4.3.1.3.5 Tension test (test sample).- Four cartridge cases from the initial production sample and four cartridge cases from each production lot shall be subj
34、ected to this test. only. The results shall be recorded for information The cartridge cases used for the hardness test may be used for this test. 4.3.1.3.6 Tension test (test method).- The test specimens shall be taken from the cartridge case in accordance with the standard positions and size of ten
35、sile specimen chart, Figure I. The yield strength, tensile strength and elongation shall be determined in accordance with the procedures prescribed for these tests by ASTMFIethod E-8. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48565 33 W
36、 9999906 O323669 4 W MIL-C-48565 (MU) 4.3.1.3.7 High stress expansion test (test sample).- Each cartri-3 Ejection.- The term “Ejection“ shall mean that the cartridge case is thrown free of the breech of the weapon to permit loading of the subsequent round 6.4 Visual standards.- Visual standards will
37、 be established at contractors plant in compliance with 3.8.1.2 or whenever directed by the Procuring Contracting Agency. 6.5 Ordering data.- Procurement documents should specify the title, _ . v number, and date of this specification. Custodian : Preparing Activity Army - MU Army - MU Project No. 1
38、3 12 5- A Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-0b 0323676 I MIL-C-98565 13 G .rl al f-l 1 u X rl w u rl 1 w O u rl E u al t 5.5 w o- al MS ri q ribo Mici alm .* 3 al m ou w r is i2ri 5- M c al .d it 7 x rl 7 n- *U. S. GOVERNMENT PRINTING OFFICE: 1975.603.1 18/4610 13 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
