ARMY MIL-C-70949-1990 CASE CARTRIDGE 105MM M115B1A1《M115B1A1型105MM炮弹筒》.pdf

1、I I i to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) ! 0 1 and supplement thereto, cited in the solicitation. I MIL-C-70747 13 = 7779706 0370286 2 IINC

2、“D1 MIL-C-70949 (AR) 12 January 1990 MILITARY SPECIFICATION CASE, CARTRIDGE, 105MM, M115BlEl This Specification is approved for use within the U. S. Army Armament, Munitions and Chemical Command, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scop

3、e. This specification contains requirements, quality I ?a-; - I y- assurance provisions, and packaging for the 105mm, M115B1E1 I Spiral-Wrapped Cartridge Case (SWCC) . 2. APPLICABLE DOCUMENTS 2. I Government documents. 2.1.1 Specifications, standards and handbooks, The following specifications, stan

4、dards and handbooks form a part of this document SPECIFICATIONS MIL IT ARY MIZ-C-46487 - Cleaning, Preparation and Organic Coating of Steel Cartridge Cases MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification for I Beneficial comments (recommcndations, additions, de

5、letions) and any pertinent data wbich may be of use in improving this document should be addressed to: Commander, U.S. Army Armament, Munitions, and C4emica Command, Attn. AMSMGQA, Picatinny Arsenal, New Jerscy 07806-5000 by using the self-addressed Standardization Document Improvement PropciSai (DD

6、 Form 1426) appearing at the cnd of this document or by letter. AMSC NIA FSC 1315 1 Approved for public release; distribution is uniimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-707q7 13 777770b 0370287 4 MIL-C-70949 (AR) STANDARDS MI

7、LITARY MIL-STD-1169 - Packaging, Packing Shipment of Inert and Marking for mmun i tion Components (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from: Military Specifications and Standards, Bldg. 4D, TOO Robbins Avenue, Philadelphia

8、, PA 19111-5094.) 2.1 The fol form a otherwi .2 Other Government documents drawings and publications. lowing other Government documents, drawings, and publications part of this document to the extent specified herein. Unless se specified, the issues are those cited in the solicitation. n DRAWINGS X

9、ARMY 7548235 - Cartons, Ammunition, for Interplant Shipment of Steel Cartridge Cases, Empty 37mm to 120mm, Inclusive 8663760 - Gage, Chamber 9323901 - Case, Cartridge, 105mm, M115B1El (Copies of specifications, standards, handbooks, drawings, publications and other Government documents required by c

10、ontractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified,

11、 the issues of the documents which are DoD adopted shall be those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation. ASTM Methods - AMERICAN SOCIETY FOR T

12、ESTING AND MATERIALS ASTM BI17 - Standard Method of Salt Spray (Fog) Testing ASTM E18 - Standard Methods of Test for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Ma ter i als (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race S

13、treet, Philadelphia, PA 191 03-1 137 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70949 13 9979906 0370288 b - 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text

14、however, supersedes applicable laws and regulations unless a specific exemption has been obtained. of this document takes precedence. Nothing in this document, 3. REQUIREMENTS 3.1 General. The cartridge case shall comply with the requirements of the applicable drabrings and referenced specifications

15、. 3.2 Material. The supplier shall be responsible for selecting from the classification list contained in the raw material material used in manufacture. h specifications, the surface and physical condition of the raw * ir“ 3.3 Mechanical properties. The mechanical properties specified on drawings an

16、d referenced specifications shall be uniform throughout each section. 3.4 Protective coating. Protective coating as specified on drawings and referenced specifications shall aDdy to all surfaces of .* “ the cartridge case regardless of contour configuration and shall be uniform and continuous. Scrat

17、ches exposing base metal are not permitted. 3.5 Assembly tightness. The case shall be assembled in such a manner that there is no relative rotation between the base, the cup, and the body when a torque of 75+5 in.-lbs. is applied to the base. e - 3.6 Maximum profile and alignment. Maximum profile an

18、d alignment of the cartridge case shall comply with chamber gage drawing 8663760. 3.7 Ballistics. The cartridge case shall comply with the requirements of 3.7.1 through 3.7.5 when subjected to ballistic testing in accordance with 4.6.7 in the following phases: a. Excess pressure phase b. Cold temper

19、ature phase C. Excess, excess pressure phase (for information only). 3.7.1 Obturation. The cartridge case shall effectively seal the gun breech against leakage of gases generated during firing. i. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL

20、-CO949 13 m 9999906 0370289 m MIL-C-70949 (AR) 3.7.2 Extraction. After firing, the cartridge case shall be extracted by the service extractors when the gun is operated in the normal manner. 3.7.3 Primer retention. The cartridge case shall retain its primer during firing and extraction. 3.7.4 Propell

21、ant gas leakage. The cartridge case shall effectively prevent the entry of propellant gas through or between case components into the gun chamber. be free of cracks or splits through all body plies. 3.7.5 Cracks or splits. After firing, the cartridge case shall 3.8 Workmanship. The requirements for

22、workmanship are as specified-on drawings, referenced specifications and the following: 3.8.1 Metal defects. The cartridge case shall be free of cracks, blisters, laps, deep scratches, dents, embedded foreign matter, porosity, and other metal defects. 3.8.2 Burrs. No cartridge case shall have any bur

23、rs. 3.8.3 Foreign matter. No cartridge case shall contain chips, dirt, grease, oil, rust, corrosion, or other foreign matter. 3.9 First article inspection. This specif.ication contains technical provisions for first article inspection. Requirements for the submission of first article samples by the

24、contractor shall be as specified in the contract. 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 all inspection requirements (examinations and tests) as specified he

25、rein. Except 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 in

26、spections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed r equ i r emen t s. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-707Y7 13 W 7777706 0370270 Y MIL-C

27、-70949 (AR) I I I I I 1 I 1 t I l i l I t I 1 c i I P 4.2 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any i

28、nspection requirements in the 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 accepta

29、ble practice to ascertain conformance to requirements, however, this does not authorize submission of known defective materials, either indicated or actual, nor does it commit the Government to accept defective material. 4.3 Classification of inspections. The following types of inspections shall be

30、performed on this item: a. First article inspection b. Quality Conformance Inspection 4.4 First article insDection. 4.4.1 Submission. The contractor shall submit a first article sample as designated by the Contracting Officer for evaluation in accordance with provisions of this specification. The sa

31、mple shall be manufactured using the same materials, equipment, processes, and procedures as will be used in regular production All parts and materials, including packaging shall be obtained from the same source of supply. A first article sample or portion thereof, as directed by the procuring agenc

32、y, shall also be submitted whenever a change occurs in specification, or source of supply, such as to significantly affect product uniformity as determined by the responsible government technical agency. The first article sample shall consist of the following items in quantities indicated. Part Desc

33、ription Drawings Quantity Cup (uncoated) 11 735732 Cup (coated) 11 735.732 Collar (uncoated) 11 735733 Collar (coated) 11 735733 Base (uncoated) 11 735735 Base (coated) 11 735735 Test Panels (See MIL-C-46487) - Cartridge Case Body Blank - Cartridge Case (Ml 15BIE1) 9323901 4 10 4 10 4 10 2 4 254 4.4

34、.2 Inspections to. be performed. See MIL-A-48078 and Table I specified herein. 4.4.3 Rejection. See MIL-A-48078 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c O .rl -Q o a, a CA c .rl a, rl o .rl +, L a .Q CA L .rl Lu I H a, rl P a I3 (u LL O ?

35、E I m. h rl P CA CA 4 a, CA a c) a, hD a .rl L .Q L a U w cl m 8 r ? ? ?*=i- . . M M ?*a- . e M M M . M MMM MrOM 03N ? O=rN ? 3 =r =r CA -Q o a, ccr a, am CA La, 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-k “ Cu L O Cu k I v) h rl P vi vi 4 a,

36、 VI lu V a, ho P .rl L L lu U w In E: 8 Y 7 a 7 7 3 c lu rl P P hl vi $1. vi al n h rl c O O cci c TI a, L 7 vi vi a, U L a,a 7 -0 W VI 3 ai c O S h a E c U .s 3 n In Co W IL 4 O h u) rl VI a, u rd Q W !x n *I- n “ r 0-l Co 3 3 4 n I- n O h u) 4 E 55 3 O IL o Provided by IHSNot for ResaleNo reproduc

37、tion or networking permitted without license from IHS-,-,-MIL-C-70747 13 W 777770b 0370273 T W MIL-C-70949 (AR) 4.5 Quality conformance inspection. 4.5.1 Lot formation. Lots shall comply with the lot formation provisions of MIL-A-48078. In addition one lot of cartridge cases shall consist of not mor

38、e than 25,000 units. 4.5.2 Examinations and tests. 4.5.2.1 Classification of characteristics. Quality conformance examinations and tests are sDecified in the following Classification of Characteristics paragraphs. detailed inspection plan shall provide assurance of compliance of all characteristics

39、with drawing and specification requirements utilizing as a minimum the conformance criteria specified herein. Where specified herein, attributes sampling inspection shall be conducted in accordance with Table II below. Samples shall be selected at random. The contractors quality program or .Table II

40、. Sampling I I I Inspection Level I I Lot Size I I Major Defects II Minor Defects I I I 1 I I I I I I I 14 to 90 I * I 13 . l I 91 to 150 I 125 I 13 I I I I51 to 500 I 125 I 30 I 125 I 35 I I 1201 to 3200 I I 43 50 125 3201 to IOOOO I 125 I I 10001 to 35000 I 296 I 61 I I I * I * 2 to 13 I I I I I I

41、 I I I I I I I I I I I I I I I I I I I I I 501 to 1200 I I Numbers under inspection levels indicate sample size. I I I I * Indicates one hundred percent inspection. I I inspection. Accept on zero and reject on one or more for I I both inspection levels. I I If sample size exceeds lot size, perform o

42、ne hundred percent I 8 a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-O W e O 4.5.2.2 Alternative inspection provisions. Alternative inspection procedures, methods or equipment. such as statistical - process control, tool- control, other types f s

43、ampling procedures, etc., may be used by the contractor when they provide, as a minimum, the level of quality assurance required by the provisions specified herein. Prior to applying such alternative procedures, methods, or equipment, the contractor shall describe them in a written proposal submitte

44、d to the procuring contracting officer for evaluation and approval by the Government. When required, the contractor shall demonstrate that the effectiveness of the proposed alternative( s) is equal to or better than the specified quality assurance provisions herein. In cases of dispute as to whether

45、 the contractors proposed alternative(s1 provide equal assurance, the provisions of this specification shall apply. All approved alternative inspection provisions shall be specifically incorporated into the contractors quality program or detailed inspection system, as applicable. 4.5.3 Tool control

46、dimensions. Dimensions marked “Tool Control1 shall be gaged at the beginning or end of each (24 hour) working day, on each machine in operation and for the first component produced after any tooling change, adjustment or repair. When destruction of components is necessary to inspect these dimensions

47、, measurements of the tool may be substituted provided the contractor has established correlation between the tool dimensions and the component dimensions prior to the start of production. All material produced prior to periodic inspection will be rejected and screened whenever a defective tool cont

48、rol dimension is found. 4.5.4 Inspection equipment. Inspection equipment required to perform the examinations and tests prescribed herein is described in the “Inspection Method Reference“ clumn in the tables starting with paragraph 4.5.5. 4.5.5 Classification of characteristics. I 9 Provided by IHSN

49、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-+ I- 5 LL O Lr. O v a 7 wo E rCU H HHHHHHH H HHHH H HHHHHHHvH HHHHNN a a, e .d 44 a, a a, c O z L O bo e .d rn rn .ri a FI H . L O O P-l 10 - ., .- i-. 9% : . :, . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,