1、EZC-81788%)=7 6 August 1970 . Superseding AS-1072 1 . . .- -. , . . . . , _: -. ._ . 2. . : . ,. . .:. : -. . MII;LTARYSPECIFiCATION L. I CARTRIDGES, DELAY, MAFX 4 MOD 2, VARK 5 MOD 2 AM MARK 6 WD.2 * . - .Thh specification has been approve3 by the Naval :- Air Systems Command, Department of the Nav
2、y. - . - . . 1. SOOPE . - . 2. APPLfCABUDOm . *L . .I . I. .I . . . - 2.1 The following specifications, standsrds, drawings, and publi- . cations, of the issue in effect on date of invitetion for bids, form - :- -. “ i . : . . -. ;a part of this document to the urtent Specified .- herein. I . . i.*
3、.- . 1 t. , . _- , . SPrnFICATIONs - -_ . *. Military . . _. . . :. Preservation,. Methods of . L- Powder, Ignition, Geslecs -.- d .i .- P . -, a . : Licensed by Information Handling Services. -. .s I- . . ., . F +. . i;. _. . t i .:* . . . . c _ . . . -1 . . .- . . . . , ._ . - r . . . MIL-C-al78B(
4、As) .: p, LI .-. : 6TAmDARS .- -. *. .- _. _.- . . ,. . . Military -: . ., .I Sampling Procedures and Attributes . f. Tables for Inspection by . , .: . MIESTD-O:, -. . . .* MILSTD-W Marking for Shipment and Storage DRAWINS Naval Air Systems Cormaand (CQDE IDENI 30003) 537903 2 25184.48 2 5 19 703 25
5、19704 2 5 19 705 2536183 * 283Eligo Container, Inner, for Certridges, Power Source (Formerly Code Ident ooO) Container, Outer, for Cartridges , Power Source (Formerly Code Ident OoO1) Cartridge, Delay, MARK 4 MOD 2 Cartridge, Deby, um 5 Mm 2 Cartridge, Delay, 6 MOD 2 Holder end Primer Assembly Delay
6、, Loaded Assembly Cartridge, Delay, 4 WD 2 Assembly . Cartridge, Delay, MARX 5 MOD 2 As s embl y Cartridge, Delay, MARK 6 MOD 2 Ass enbly Test Set for Certridges, Delay ( .38 Caliber Size) Sleeve Licensed by Information Handling Services.- : . MIEC- 8178qAS) -. _. -. . . .- . -. . . Ordnance Corps o
7、f the Akq (CODE U) Primer, Percussion, M the Manganese Delay Composition, HEM-21383; and the Powder, Gasless Ignition, MIL-P-22264; are defined as primary components. See 4.3.3. , . . facture. When alternate materials or methods of manUracture are . . f 3.4 Primer. The primers shall be flumished fro
8、m lots manufactured withln the preceding I2 months. accordance with Drawing 8799925, loaded with primer mixture as specified on Drawing 25184-47, and accepted in accorance with MIL-P-20444. See 4.7.1. The primers shall be manufactured in . I 3.4.1 X-ray. Primers shall be free of the foilowing defect
9、s when examined by X-ray in accordance with 4.7.2: charge; charge broken, cmcked or porous; cracked or off-center anvil, or other misplaced or defonned inert parts; anvil abnormally close to primer cup dome; and all.other observable defects in assembly. missing or abnomally thin . . 3.5 Manganese de
10、lay composition. The manganese delay composition shaU be manufactured in accordance with MLM-21383 and loaded in - accordance with Drawing 2518448. 3.6 Gasless ignition powder. The gasless ignition powder A-IA shall be manufactured in accordance with MIL-P-22264, Class A and -loaded In accordance wi
11、th Drawing 2518448. 3.7 Propellant charge. . : 4 Licensed by Information Handling ServicesMIL-C-1788 13 7777706 0357705 4 -. -. MILC-81788 (AS) 3.7.1 Quantity. All propellant charges for the MARK 4 MD 2, a MARK 5 MOD 2 and PARK 6 MOD 2 delay cartridges shall be as specified be determined by weight r
12、ather than by volume measurements. on Drawings 2519703, 2519704 and 2519705, respectively. Charges shai 3.7.2 Smokeless powder, handling and loading. Do not subject the smkeless powder to unnecessary hanaing or exposure to the atmosphere. . The handling and loading of smokeless powder exposed to the
13、 atmosphere shall be performed only under conditions that a0 not permit the relative : humidity to exceed 75 percent. 3.7.3 Smokeless powder, condition. The smokeless powder utilized . shall exhibit no evidence of decomposition; See 4.7.3. 3.8 Cartridge inspection. 3.8.1 Visual inspection. Cartridge
14、s shall be free of the following visible defects: burrs, dents, deep scratches, split or cracked edges, . - damage to closure cup, sharp edges,-efective seaiant application around the crimped areas; and all other defects which could conceivably prevent entry into the firing chamber or aversely affec
15、t ballistic performance See 4.7.4. 3.8.2 Leakage. Cartridge leakage rate shall not exceed 10 cc 3.8.3 X-ray. Cartridges shall be free of imperfections in assembly -5 of air or gas per second when tested in accordance with 4.7.5. when examined by X-ray in accordance with 4.7.6. 3.8.3.1 Serial number
16、identification. Cartridges shall be legibly . I identified by serial numbers in accordance with 4.7.6. 3.9 Ballistic requirements. Cartridges from each production lot, selected in accordance with 4.1.7, shall meet the requirements listed below when subjected to the test prescribed in 4.7.7. 3.9.1 De
17、lay times. The delay cartridge shall function and produce the delay times within the limits shown below. as the time from actuation of the firing mechanism to the start of pressure rise. Delay time is defined pper Limit Lower Limit Delay Cartridge (secorids ) ( seconds ) 3 . .- 0.95 0.61 2 *53 i .62
18、 MARK 4 MOD 2 MARK 5 MOD 2 MARK 6 MOD 2 3.80 2.43 ._ . . . i 5 Licensed by Information Handling Services.i . -. .u _. . .- . . . . . Mf. The packaging and packiag of cartridges and the container markings shall be in accordance with Section 5. See 4.6.1. - ., 3.11 Workmanship. Cartridges shall be con
19、structed and finished in a manner to assure compliance with all requirements of this specifi- cation. Particular attention should be directed to dimensions, finishes . , ma coatings .a 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the supplier is re
20、sponsible for the performance of all inspection requirements as specified herein. Except . a6 otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Gov
21、ernment. The Government reserves the right to perform any of the Inspections set forth in the specification where such inspections are deemed necessary to assure suppies and services conform to prescribed requirements sampling plans and procedures used in the determination of the accept- ablity of p
22、roducts submitted by a supplier shall be in accordance with the provisions of MLSTD-lO5. +- . 1- . : 4.2 Sampling. Unless otherwise specified, ancl when applicable, the I- *- . 4.3 Lots. 4.3 .i inspection lots. inspection lot definition, formation, and size shall be In accordance with MIL-STD-105. 4
23、.3.2 Prepmduction sample. Before entering into quantity production, an acceptable preprouction sample of 94 MARK 4 MOD 2, MARK 5 MOD 2 or VARK 6 MOD 2 delay cartridges shall be prepared. Of these cartridges, 28-ay temperature . Licensed by Information Handling Services1 . - ._ . :_ . a- . , and humi
24、ity cycling (18);.vlbration (12); ad 15 “g“ shock (E). . These cartridges, after exposure to er;vironment trptments, shall be conditioned for a minimum of six haws at 70 f 5 F together with . 12 untreated cartridges and fired in accogdance with 4.7.7.1. i2 cartridges shall be conitioned at -65 F and
25、 2 shall be conditioned at +16. Temperature conditioning and firing of these cartridges shall be as specified in 4.7.7.1 for -up 1 and Group 2 samples, respectively. AU. tartridges shall fire and produce results within the limits set forth in paragraphs 3.9 .l, 3.9.2 and 3.9 -3. Any quantity product
26、ion prior to notification by the contracting agency of preproduction sample acceptability shall be at the contractors risk. .- . . In addition, , 4.3.3 Production lot. Unless otherwise specified in the contract, the minimini and maximum production lot size shall be 501 an 3200 car- tridges, respecti
27、vely. only primary components from a single lot shall be used in a production lot of cartridges; however, one primary component pmduction lot may be used in more than one cartridge production lot. . 4.4 Gages. The contractor shall provide gages as necessary to insure that the material to which this
28、specification applies will meet the dimensional requirements shown on the applicable drawings. 4.5 Classification of characteristics. The characteristics verified by the tests and examinations herein are classified as Critical, MaJor . . e. . .3.9,*:4.7.7 I Packaging, packing 3.10, -4.6.1 - .and con
29、tainer . ._ markings c 4.6.1 Packaging, packing and marking. Quality confonnance inspection shall be conducte6 in accordance with the inspection criteria on the applicable drawings referenced in Section 5. 1 .- -_ 4.7 Tests. .* 4,7.1 Frimer verification. Verification shall be provided that the prime
30、rs used were manufactured, loaded, and accepted in accordance with the requirements of 3.4, 4.7.2 Primer X-ray. having any of the defects of 3.4.1. Pressure-sensitive tape may be used as an aid in positioning the primers in suitable grooved racks. For the most revealing exposure, the primers are lai
31、d on their side ,with the anvil cutouts vertical. 4 Examine all primers by X-ray and reject those - Licensed by Information Handling Services,. . -, -. . .- . * . -_ . T ._ -_ r. . . . MIL-k-81788(Ac) . . .- *. .e - . i . 4.7.3 Smokeless powder, condition. Smokeless powder shall be * inspected in ac
32、cordance with the appLicable paragraphs of OP 5. Evidtnce of decomposition shall be cause for redection . 4.7.4 Visual inspection. . as6iCplable cau6e, excluding the test cartridges, original test-results -. .- -. . -. -. . : : i . . _ . . i ,. . . . .-. . . 4.7.7.3.1 Test failure. If test - . 6.4.1
33、 Level A packaging. The degree of preservation an i i . ._. a_ -. . -. r( ,. :. r. and world-vide redistribution-. 6.4.1.1 Level C packaeng. The degree of preservation and pack- : aging which will affor adequate protection against corrosion, deterio- ration and physical damage during shipment from s
34、upply source to the first receiving activity for immediate we. This level my conform to suppliers commercial practice when such meets the requirements of . . t. this levei. . ,. 6.4.2 Level A packing. !Che degree of packing which will afford adequate protection during shipment, handling, indetermina
35、te 8bx%ge and world-wide redistribution. *. . ,. !- . .: _. .- . -. ._ . . .- . ._. . .- . 6.4.2.1 Level C packing. The degree of packing which will affonl This -. pmtection aminst daaiage during direct domestic shipment from the supply saurce to the first receiving activity for immediate usei level
36、 in general will conform to applicable carrier rules and regulations ana may be the suppliers commercial practice when such meets the requirements of this level. 6.5 Ex-p losives safety precautions. Safety precautions for explosive- loaded items are containe in MIL-STD-134. r *. .r -i -. -. . -. .-.
37、 - 3.2 ?. Licensed by Information Handling Services- flIL-C-BL7BB 13 H 9999906 0359913 3 -lb . -.- . ., - . . ML-C-mg8(A.S ) .: -7 , .- . . -. .r : . I -. _-. 6.5.1 Applicabilty The loading, assembly ;i- .- . ._ _. . . . .- . . Project NO. 3.377-It403 -. . _ . :_ I- -. -. _ . 1- .* . . 2: . . ,. . . . i :- , . . Licensed by Information Handling Services
