1、1. . - :* - - -, . MIL-C-L331A 13 9999906 0359063 Lf B - d. I. fl Y ? i 1-c-81331( AS) 27 .August 1970 Superseding 21 October i965 m-c-81331( AS ) . * 1, *- ; - MILITARY SPECIFICATION CARTRIDGE, =E, MARK 73 MOD O $. This specification has been approved by the Naval Air Systems Command, Department of
2、 the Navy. 1. SCOPE 1.1 This document governs the manufacture, assembly and preparation for delivery of the BIARK 73 MOD O impulse cartridge and the methods of inspection and tests upon which product acceptance will be based. 2. I APPIJIWLE DOCUMENTS 2.1 The following specifications, standards, draw
3、ings and publica- tions, of the issue in effect on date of invitation for bids, form a part of this document to the extent specified herein. SPECIFICATIONS Militaq I rnL-P-U.6 . MILD-21625 MILP-46610 r I STAmDARDS .I Military -1 MIL-STD-105 . Presermtion, Methods of Design and Evaluation of Cartridg
4、es for Cartridge Actwted Devices Primers, Percussion, Styphnate and Chlorate Types, for Snail Arms Ammunition Sampling Procedures and Tables for Inspection by Attributes Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-C-81331A 13 77777Ob 035706
5、1t b W MIL-C-813=(AS) i. MIESTD-129 brking for Shipent and Storage :_ . faL-STD- 414 Sampling Frocedures arid Ta5les for Inspection by Variables DRAWINGS AND ASSOCiAmD LISTS (Code Ident No. 30003) Naval Air Systems Command DL 2518226 Cartridge, linpulse, MARK 73 MOD O 2518208 Container, Inner, Assem
6、bly 2518209 Cartridge, Impulse, MARK 73 . MOD O, Packaging Assembly 2518226 Cartridge, Impulse, MARK 73 MOD O, Assembly 2518228 Head Assembly (Code Ident No. 19200) u. s. Army Munitions Cormnand .c-7645339 Primer , Percussion . PUBLICATIONS Bureau of Naval Weapons OP 5 hnition Ashore (This publi- ca
7、tion is not nirnished to the bidders and contractors by the procuring activity. Contractors should contact the Government Inspector for use of the publication. WR-43 Preparation of Quality Assurance Provisions (Copies of specifications, standards, drawings and publications required by contractors in
8、 connection with specific procurement functions should be obtained from the procuring activity or as directed by the Contracting Officer. ) 2 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. i- . MIL-C-L33LA 13 = 7779906 0357065 B 1. . _ . . . MIL
9、- c-8133u( AS) 2.2 Other publications. The following document foras a part of Unless otherwise indicated, the issue h effect this specification. on date of invitation for bids shaii apply. CODE OF FEDERAL REGULATIONS 49 CFR 171-178 Deprtment of Transportation, Explosives and Other Dangerous Articles
10、 (Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, D. C. 20402. Orders for the above publication should request the latest edition and supplements thereto. ) 3. FtEQvrrznilEmrS 3.1 General. 3.1.1 The MARK 73 EIOD O impulse cartrid
11、ge covered by this specifi- cation shall be manufactured in accordance with DL 2518226 and all documents listed thereon. 3.2 Materials. All materials used in the manufacture of the car- tridges shall conform strictly with the specifications referenced on the respective NAVAIR rawings unless specific
12、 approval in writing covering a departure therefrom ha6 been obtained from the cognizant Navy field activity prior to manufacture. cartridge nunnufacture are specified on the drawings, the bidders selections shall be clearly stated in the proposal. When alternate materials or methods of . 3.2.1 Prep
13、roduction sample. Unless otherwise specified by the procuring activity, a preproduction sample of 70 cartridges shall be manufactured using the game methods and procedures proposed for the production lot. is for the purpose of determining that the contractor, prior to starting production, is capable
14、 of producing items which comply with the technical requirements of the contract. The sample shall be tested as specified in 4.3.2 and 3.3 Primary components. For the purposes of this specification the primer and the main charge propeant are defined as primary cmponents . See 4.3.3. 3.4 Primer. The
15、primers shall be furnished from lots manufactured within the preceding twelve months. The-primers shall be 50M loaded with Remington Arms Primer Mixte 506iw, manufactured in accordance with Drawing C-7645339 and shall be from lots which were accepted in accordance with MIL-P-46610, Cass i. See 4.7.1
16、. . 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. NIL-C-BL33LA 13 qqab 035qObb T m MILC-8133U(AC) 3.4.1 X-ray, Primers shall be free of the following defects when examined by X-ray in accordance with 4.7.2: charge; charge broken, cracked or por
17、ous; cracked or off-center anvil or other misplaced or deformed inert parts; andl abnormally close to primer cup dome; and all other observable defects in assembly. missing or abnormally thin 3.5 Propellant charge. 3.5.1 Quantity. All main propellant charges and booster charges shall be as specified
18、 on Drawings 2518226 and 2518228, respectively. Charges shaU be determined by weight rather than by volume measurements. 3.5.2 Smokeless powder, handling and loading. Do not subject the smokeless powder to unnecessary handling or exposure to the atmosphere. The handling and loading of smokeless powd
19、er exposed to the atmosphere shall be performed only under conditions that do not permit the relative humidity to excee 75 percent. . 3.5.3 Smokeless powder, condition. The smokeless powder utilized shall exhibit no evidence of decomposition. See 4.7.3. 3.6 Cartridge inspection. 3.6.1 Visual inspect
20、ion. Cartridges shall be free of the following visible defects: split or cracked lip in the crimped area, damaged closure disc, incom- plete or improper sealant application, or any other imperfections which could prevent entry into the firing chamber, .or adversely affect performance or resistance t
21、o moisture. air or gas per second when tested in accordance with 4.7.5. by X-ray in accordance with 4.7.6. selecte in accordance with 4.7.7.1, shall meet the requirements listed below when subjected to the test prescribed in 4.7.7.1. dents, deep scratches, sharp edges, cracks, burrs, See 4.7.4. 3.6.
22、2 Leakage. 3.6.3 X-ray. Cartridges shall be free of imperfections when examined 3.7 Ballistic requirements. Cartridges from each production lot, Cartridge leakage rate shall not exceed 10-5 cc of 3.7.1 Pressure. The upper lMt of maximum pressure shall be 14,500 pounds per square inch. See 4.7.7.1.1.
23、1. 3.7.2 Velocit . The lower limit of velocity shall be 73 feet per second. See + .7.7.1.1.2. t 4 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. e*._ -. *. . I . -: . MIL-C-L33LA 13 m 7777306 0357067 L MIL-C-8133U(AS) 3.7.3 Misfire. mere shall b
24、e no misfires. See 4.7.7.1.1.3. 3.7.4 Hangfire. There shall be no -fires. See 4.7.7.1.1.4 3.8 Change in propellant lot. Whenever .a change occurs in the progellant lot for the niain charge, test firings shall be conducted in accordance with 4.7.9. 3.9 P, Packing and Marking. The packaging and packin
25、g of cartridges and the container markings shall be in accordance with Section 5. in a manner to assure compliance with all requirements of this speci- fication. finishes and coatings. 3.10 Workmanship. Cartridges shall be constructed and finished Particular attention should be directed to dimension
26、s, 4. QJALITY ASSTJ“m 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 as specified herein. Except as otherwise specified in the contract or order, the supplier m
27、ay 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 inspections set forth in the specifications where such inspections are deemed necessary t
28、o assure supplies and services conform to pre- scribed reguirements. 4.2 Sampling. Unless otherwise specified, and when applicable, the sampling plans and procedures used in the determination of the acceptability of products submitted by a supplier shall be in accordance with the provisions of MILST
29、D-414 or MIL-STD-105, whichever applies. . 4.3 7 lhts. 4.3.1 Inspection lots. Inspection lot definition, formation, and size shall be in accordance with MIL-STD-414 or MIL-STD-105, whicnever applies. 4.3;2 Preproduction sample. Before entering into quantity pro- Of these cartridges, 60 shall be expe
30、nded in the tests A duction, an acceptable preproduction sample of 70 cartridges shall be prepared. listed below and 10 shall be retained for investigative purposes. preproduction sample acceptable for environmental and functional . 5 Provided by IHSNot for ResaleNo reproduction or networking permit
31、ted without license from IHS-,-,-. : . . . NIL-C-BL33LA 13 m 777770b 035q068 3 m. MTE c-81331() testing shall be defined as a sample which has met the requirements of paragraphs 3.6.1 through 3.6.3 of this specification. tion sanple acceptance shall consist of the following tests as pre- scribed in
32、Table 3 of MIL-D-21625: - leak test (60) ; i5 “g“ shock (6) j vibration (6) ; temperature and humidity cycling (U). parentheses denote the number of cartridges allocated for test. cartridges shall, after exposure to environmental treatment, be con- ditioned for a minimum of six hours at +70F f 5F to
33、gether with 12 untreated cartridges and fired in the test fixture of 4.7.7.1. addition, 24 cartridges shal1,be temperature conditigned for a mhxhum of six hours (E at -65“ f 8oF and 12 at +160“F -i; to notification by the contracting agency of preproduction sample acceptability shall be at the contr
34、actors risk. the minimum and maximum production lot size shall be 181 and 8 car- tridges, respectively. shall be used in a production lot of cartridges; however, one primary component production lot may be used in more than one cartridge produc- tion lot. Preprobc- Numbers These In h cartridges shal
35、l fire and produce Any quantity production prior % 4.3.3 Production lot. Unless otherwise specified in the contract, Only primasy components from a single lot 4.4 Gages. The contractor shall provide gages as necessary to insure that the material to which this specification applies will meet the dime
36、nsional requirements shown on the applicable drawings. 4.5 Classification of characteristics. The characteristics veri- fied bu the tests and examinations herein are classified as Critical, Major and Minor in accordance with WR-43. verify critical characteristics are identified by the symbol (C) and
37、 major characteristics by the symbol (M) . classification symbol indicates the serial number of test or exami- nation. fication code are classified minor. Tests and examinations that The number following the Tests and examinations which are not annotated with a classi- 4.6 Quality conformance. Waiit
38、y confoimance inspection shall consist of verification of the characteristics classified on the drawings of DL 2518226, and verification of the following reqyire- ments and tests: 6 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Item - camponent C
39、lass if i- Applicable cation Paragraphs (WR-43) 3.3, 4.3.3 (mol) Nature of Requirement Ver if i cation Single lot verification Primer Age, loading and acceptance Primer X-ray PropeUant “ype and weight Condition 3.5.3, 4.7.3 (c4) Smokeless powder Cartridge . 3.6.1, 4.7.4 (mo21 Visual inspection Leaka
40、ge 3.6.2, 4.7.5 (c5) 3.6.3, 4.7.6 (C6) Cartridge Cartridge X-ray Cartridge Ballistic test Cartridge Ballistic (atinge in propeant iot) Packaging, packing and container markings Cartridge 4.6.1 Packaging, pa cking and marking. Quality conformance inspec- tion shall be conducted in accordance with the
41、 inspection criteria on the applicable drawings referenced in Section 5. 4.7 Tests. 4.7.1 Primer, veri fication. Verification shall be provided that - the primers to be used were manufactured, loaded and accepted in accordance with the requirements of 3.4, and are from lots manufactured within the p
42、receding 12 months. 4.7.2 Primer X-ray. Examine all primers by X-ray and reject those having any of the defects of 3.4.1. the primers are laid on their side with the anvil cutouts vertical. Pressure sensitive tape may be used as an aid in positioning the primers. For the most revealing exposure 7 .
43、- 3 i I . - . . - -. . . .- A- L? . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. . . .: MIL-C-I33IA I3 706 0357070 I -. MIL-c-81331 (AS) 4.7.3 Smokeless powder, condition. Smokeless powder shall be inspected in accordance with the applicable par
44、agraphs of OP 5. Evidence of decomposition shaU be cause for rejection. cartridges and reject those having any of the defects noted in 4.7.4 Visual inspection. Examine all completely assembled 3.6. i 4.7.5 Leakage. Each caztridge in the preproduction sample or balistic sample shall be leak tested in
45、 a dry gas or dry air leak tester. air or gas at a pressure differential of one atmosphere shall be considered defective exhibit a leakage defect shall be rejected. of the production lot sample exhibit a leakage defect, than a lo$ leak test of the lot being tested shall be required at no additionai
46、expense to the Government. excess of that specified above shall be rejected. Cartridges which exhibit a leak rate in excess of 10-5 cc/sec Cartridges of the preproduction sample which If one or more cartridges Cartridges which exhibit a leak rate in . 4.7.6 X-ray examination. Examine all cartridges
47、by X-ray and reject those having any imperfections. tioned on their sides for the most revealing exposure. The cartridges shall be posi- 4.7.7 Ballistic tests. . 4.7i7.1 The mber of castridges selected from each production lot for the bailistic tests shall be in accordance with the require- ments of
48、 Tables A-2 and B-1 of MIL-STD-414 Inspection Level IV and an six hours at +7O0F f 5F and fired in the test set shown in Figures 1 and 2. firing mechanism. on a tube. angle of 75 degrees with the horizontal. and dimensions are shown in Figure 2. cartridges for the above test, 10 additonal cartridges
49、 shall be furnished from the production lot for investigative purposes. A b. whether preproduction inspection is required and if so, specie the test activity; production lot size and test activity (see 4.3.3); c. d, items of data required for each preproduction and production lot (see 6.3). 10 . Provided by IHSNot for ResaleNo reproduction or networkin
