1、 ?. _ ,. . ._ ._ , 22 February 19%. Super seciing 7 April i9-,?Sus Articles - 1 _= 1 2 z . .A= - -% ;,;L- -a d d - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(Application for copies should be addressed to the Sumwj iitendent of Documents, Govern
2、ment hintinp, Offi ce, Washincton, i). C. 204 02, for the above publication should request the latest edition and suyilemnnts thereto. ) Orders 3.1 General, 3.1.1 The MARK 14 MOD O impulse cartridge covere6 by this smcifi- cation shall be manufactured in accordance with the drawings listed on LE 491
3、824. 3.2 Materials. All materials used in the manufacture of the car- tridges shall conform strictly with the specifications referenced on the respective NAVAIR drawings unless specific approval in writing covering a departure therefrom has been obtained from the Navy cognizant field activity for ca
4、rtridges- prior to manufacture. When alternate materials or methods of cartridge manufacture are specified on the drawings, the bidders selections shall be clearly stated in the proposal. 3.2,1 Preproduction sample. Unless otherwise specified by the pro- curing activity, a preproduction sample of 94
5、 frlARK 14 MOD O impulse cartridses shall be Eanufactured using the same methods and procedures proposed for the production lot. The sample shall be tested as specified in 4.3.2 and is for the purpose of determining that the contractor, prior to starting production, i5 capable of producing items whi
6、ch comply with the technical requirements of the contract . 3.3 Primary components, For the purposes of this specification the primer and main propellant charge are defined as primary components, See 4,3.3. 3.4 Frimer, The primers shall be furnished from lots manufactured within the preceding 12 mon
7、ths. The primers shall be manufactured in accordance with Drawing C7645339, loaded with Remington Arms Company priming mixture 5061.w; and shall be from lots which were accepted in accordance with MIL-Po, Class 1. See 4.7.1, Primers shall be free of the following defects when 3.4.1 X-raz. examined b
8、y x-ray in accordance with 4,7.2: charge; charge broken, cracked or porous; cracked or off-center anvil or other misplaced or deformed inert parts: anvil abnormally close to primer cup dome: and all other observable defects in assembly. missing or abnormally thin 3.5 Prowllant charpec. 3 Provided by
9、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. -1 MIL-C-22h5bB 13 97777Ob 0302725 3 M 3.5. Quantity. All propellant charqes shall be as specifiee on hawing 1669350. voluw masurement s . Charges shall be detenined by weiqht rather thari by 3.5.2 Black powder.
10、 The moisture content of the black power shall be determined as specified in MIL-P-223 and at the time of loading snall be k5thin the limits spcified therein for the applicable class of black powder being used. See vibration (12); temperature The failme of any cartridge to meet the acceptance requir
11、e- h.3.3 Froduction lot. nless otherwise smcified in the contract, the minimum and maximum production lot size shall be 181 and 800 cartridges, respectively. Only primary components from a single lot shall be used in a production lot of cartridges; however, one prinary component production lot may b
12、e used in more than one cartridge procuction lot, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1- MIL-C-i MI L-C -22 656B (A3 ) h.4 Gaps. The contractor shall provtde gages as necessary to insure that the material to which this specification appli
13、es wib meet the di men- sional requirement s shown on the applicable drawings, . 4.5 Classification of characteristics. The Characteristics vsified by the tests and examinations herein are classified as Critical, Esjor or Minor in accordance with WEi43. cal characteristics are identified by the symb
14、ol (C) and major character- istics by the symbol (M). The number following the classification symbol in-dicates the .serial number of test or examination, wMch are not annotated with a classification code are classified xinor, 4.6 Quality conformance inspection. Quality conformance inspection shall
15、consist of verification of the characteristics classified on the Tests and examinations that verify criti- Tests and exaninations drawings of LD 491824, and verification of the requirement s. Item ?rimary component Primer - hiner Propellant charge Black powder Cart ridge Cartridge Cart ridge Cartrid
16、ge Cartridge Nature of Requirement Ver if ic at on Single lot Age, loading and acceptance X-ray Type and weight Moisture content Visual inspection Leakage X-ray Ba1list;ic test Packaging, packing and container markings following tests and Applicable Paranraphc 3.3, 403.3 3.4.1, 4.7.2 3.5.1 3.5.2, 4.
17、7.3 4.6,l Packaginz, packing and markinq. Quality conformance inspection shall be conducted in accordance with the inspection critepia on the applicable drawings referenced in Section 5. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-9 MTL-C-L2656
18、B( AS) lC.7.1 Primer verification. The contractor shall provide verifica- tion that the primers to be used were manufactured, loaded ancl accepted in accordance with the requirements of 3.4 and were furnished from lots manufactured within the preceding 12 months. 4.7.2 Primer x-ray, Examine all prim
19、ers by x-ray and reject those havingany of the defects of 3.4.1. For the most revealing exposure, the primers shall be laid on their sides with the anvil cutouts vertical. Tressure sensitive tap may be used as an aid in positioning the primers. 4.7.3 Moisture content of black mwder. Conduct at least
20、 one test for each cartridge lot (or daily if this requires more frequent testing) and such additional tests as considered warranted by variations in con- ditions or process. Samples may be collected at the site of loading from the powder container, or taken from cartridges prior to sealing the blac
21、k powder charge in the cartridges. The presence of moisture in excess of the limitations of MIL-P-223 shall cause suspension of loading until corrective measures have been taken, Visual inspection, Examine all completely assembled cartridges and reject those having any of the defects noted in 3.6.1,
22、 h.7.5 Leakage. Bach cartridge in the preproduction sample or pro- duction lot ballistic sample shall be leak tested in a dry gas or dry air leak tester. cc/sec.of air or gas at a pressure differential of 1.0 2 0.1 atmosphera shall be considered defective. which exhibit a leakage defect shall be rej
23、ected. tridges of the production lot sample exhibit a leakage defect, then a 100 -psrcent leak test of the lot being tested shall be required at no addltional expense to the Government. rate in excess of that specified above shall be rejected. Cartridges which exhibit a leak rate in excess of 10-5 C
24、artridges of the preproduction sample If one or more car- Cartridges whicn exhibit a leak 4.7.6 X-ray exanination. Exaqine all cartridges by x-ray and reject. Particular atten- those having any observable imperfections in assembly. tion shall be given to the presence of the propllant charge. 4.7.7 B
25、allistic tests. a.7.7.1 The number of cartridges selected from each proouctiorl lot for the ballistic tests shall be in accordance with the requirements of Table A2 of MIL4TD-414, Inspection Level IV and an AQL of 0.W. cartridges shall be conditioned for a minimum of 6 hours at +79 5 jOF . and fired
26、 in a closed chamber having an internal volume, with an expended cartridqe in place, of 5.61 t 0.05 cubic inches and a6apted for measure- ment of pressure. time between actuation of the firing mechanism and stzit of pressure rise The A record of pressure versus time and of the elapsed 7 Provided by
27、IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-2265bB 13 W 9949906 030Z727 O MIL4 -22656B(AS) shall be taken by suitable instrumentation for each firing. In add5tion to the sample of cartridges for the above test, 10 additional cartridges shall be furnish
28、ed from each production lot for investigative purposes 4,7.8 Criteria of acceutability. 4,7,8.1 Chamber pressure. The chamber pressure shall meet the require- ments of 3.7.1. the applicable provisions of “l?DJ+l4 at an AQL of O. b, whether preproduction inspection is required and, if so, specify the
29、 test activity; C. production lot size and test activity (see 4.3.3); d, items of data required for each preproduction and prodilction lot (see 6.3). 6.3 Data. For the information of contractors and contracting officers, any of the data specified in (a) subparagraphs below, (b) applicable docu- ment
30、s listed in Section 2 of this smcification or (c) referenced lower- tier documents need not be prepared for the Government and shall not be furnished to the Government unless specified in the contract or order. 6,3.1 Test report. Results of ballistic tests shall be forwarded to the Naval Air Systems
31、 Command (AIB-53222A) and the procuring activity. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-6.3.2 Data cards, The contract ororder should state the format, quantity and destination of data cards. 6.4 Definitions. For purposes of this specific
32、ation, the following. definitions apply. 6.4.1 Level A packapina. The degree of preservation and cackaping which dll afford adequate protection against corrosion, deterioration and physical damage during handling, shipnent , indeterminate storage and world-wide redistribution. 6.4.1.1 Level C packag
33、ing. The degree of preservation and packaging which will afford adequate protection against corrosion, deterioration and physical damage during shipment from supply source to the first receiving activity for hnmediate use. commercial practice when such meets the requirements of this level, This leve
34、l may conform to suppliers 6.4.2 hvel A packinq. The degree of packing which will afford adequate protection during shipment, handling, indeterminate storage and world-wide redistribution, 6.4,2.1 Level C packine;. The degree of packing which will afford This protection against damage during direct
35、domestic shipment from the supply source to the first receiving activity for immediate use, level in general will conform to applicable carrier rules and regula- tions and. may he the suppliers commercial practice when such meets the requirement of this level. 6.5 Explosives safety rirecautionc, Saf
36、ety precautions for expo- sive-loaded items are contained in MIL-STD-1314. 6.5.1 Applicabili5X. The loadins, assembly and handling of the explosives, explosive-loaded subassemblies and the finished itens covered by this Specification involve hazardous operations and there- fore require suitable expl
37、osives safety precautions. At plants of the Naval Air Systems Command, Eepartment of the Navy, and other Government plants where the Government is responsible for safety, the precautions listed in MIL-STD-1314 are mandatory. are recommended for observance by a contractor or manufacturer that explosively loads or assembles the item covered in this specification in order to fulfill his own safety responsibility. These same minimum provisions Project No. 1377-KL+64 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
