1、-_ MIL-P-70668 13 H 777770b O356632 2 a e-15-90 MIL-P-70668 (AR) 6 October 1987 MILITARY SPECIFICATION PRESSURE CARTRIDGE ASSEMBLY LOADING, ASSEMBLING AND PACKING This specification is approved for use within the U.S. Army Armament, Munitions and Chemical Command, and is available for use by all Dep
2、artments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification contains requirements not normally covered by drawings and provides Quality Assurance provisions for the parts, loading assembling, and packing for the Pressure Cartridge Assembly used in the M87 and M88 Canis
3、ter Assemblies. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following specifications and standards form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the is
4、sue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS MILITARY . MIL-P- 2 2 3 - Propellant, Black Powder MIL-A-48078 - Ammunition, Standard Quali-y Assurance Provisions, General Specification for STANDARDS MI
5、LITARY MIL-STD-105 - Sampling Procedures and Tables for MIL-STD-129 - Marking for shipment and storage inspection by Attributes Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, U.S. Ar
6、my Armament,Munitions and Chemical Command, Attn. AMSMC-QA. Picatinny Arsenal, New Jersey 07806-5000 by using the self-addressed Standardiza- tion Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by. letter. - THIS DOCUMENT CONTAINS 17 PAGES. AMSC N/A FSC 1345 DI
7、STRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-706bB 13 7777706 0356633 4 H MIL-P-70668 (AR) MIL-STD-286 - Propellant, Solid, Sampling, Examination and Testing MIL
8、-STD-6 52 - Propellants, Solid, for Cannons, Requirements and Packing MIL-STD- 810 - Environmental Test Methods 2.1.2 Other Government documents, drawings, and ublications. The following other Government documents form a Part of this specification to the extent herein. Unless otherwise - - specified
9、, the issues shall be those in effect on the date of the solicitation. DRAWINGS US ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) . PRODUCT DRAWINGS 9366511 - Pressure Cartridge Assembly 9366635 - Cartridge Case Assembly with Primer (Copies of specifications, standards, handbooks
10、, drawings, and publications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.1.3 Other publications. The following documents form a part of this specification to the extent spec
11、ified herein. Unless otherwise specified, the issues of documents which are DOD adopted shall be those listed in the .issue of the DoDISS specified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS shall be the issue of the nongovernment documents whic
12、h is current on the date of the solicitation. O CODE OF FEDERAL REGULATIONS . 49 CFR 173.94 - Hazardous Materials Regulations of the Department of Transportation (The Department of Transportation Regulations are now a part of the Code of Federal Regulations (1949 Edition and Revisions) available fro
13、m the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. Orders for the above publications should cite “49 CFR 173.94, (latest revision) .“) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70668 13 7977706 035
14、6634 6 2.2 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this specification shall take precedence. Nothing in this specification,
15、however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Material. Materials shall be in accordance with applicable drawings and specifications. 3.1.1 Propellant, M1. The propellant shall comply with MIL-STD-652 Propellant M1, Form C
16、, Type I, with grain diameter of .13 - + .O1 inch. 3.1.2 Propellant, black powder. The propellant shall comply with MIL-P-223. 3.2 Pressure cartridge assembly. The cartridge assembly shall comply with all requirements specified on Drawing 9366511 and with all requirements specified therein. 3.3 Mois
17、ture content. 3.3.1 Propellant, M1. The moisture content of the M1 propellant used in loading the cartridge assembly shall not exceed 0.50 percent when tested as specified in 4.5.2. 3.3.2 Propellant, black powder. The moisture content of the propellant used in loading the cartridge assembly shall no
18、t exceed 0.15 percent when tested as specified in 4.5.3. 3.4 Environmental conditions. The cartridge assembly shall meet the requirements of 3.5 when tested at temperature range of -35OF to +145OF. 3.5 Functioning. 3.5.1 Impact sensitivity, primer. The primer in the cartridge case assembly when test
19、ed in an impact fixture shall fire when impacted with 27 inch ounces of energy, when tested as specified in 4.5.4.1. 3.5.2 Pressure/time vaiues. (+140OF +5OF) The cartridge assembly when tested in a closed bomb test fixture as specified in 4.5.4.2 shall demonstrate the following pressure/time values
20、: 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- _I-_ MIL-P-70668 13 W 7997906 0356635 W a. Maximum Peak Pressure 16H psi b. Minimum Pressure at .10 seconds 9.5K psi c. Minimum Pressure at .20 seconds 8K psi d. Minimum Pressure at .40 seconds 7.2
21、K psi e. Maximum Time to Peak Pressure 0.08 seconds 3.5.3 Pressure/time value. (-3O0F -5OF). The cartridge assembly when tested in a closed bomb test fixtrure as specified in 4.5.4.2 shall demonstrate the following pressure/time values: a. Minimum Peak Pressure 8K psi b. Minimum Pressure at .lo sec
22、9.5K psi c. Minimum Pressure at .2O sec 8H psi d. Minimum Pressure at .40 sec 7.2K psi e. Maximum time to peak pressure .O5 psi 3.6 First article. This specification makes provision for first article inspection. Requirements for submission of first article samples by the contractor shall be as speci
23、fied in-the contract. 3.7 Workmanship. All parts and assemblies shall be fabricated and furnished in a thorough, workmanlike manner. They shall be free of burrs, cracks, chips, sharp edges, unblended radii, surface defects, dirt, grease, hot rolling defects, rust, corrosion products and other foreig
24、n matter. The cleaning method used shall not be injurious to any part nor shall the parts be contaminated by the cleaning agent. Surface coatings shall be continuous except for a few light scratches. All required markings shall be neat and sharply defined. - 4. QUALITY ASSURANCE PROVISIONS 4.1 Respo
25、nsibility for inspection and standard quality assurance provisions. Unless otherwiese specified herein or in the contract, the provisions of MIL-A-48078 shall apply and are hereby made a part of this detail specification. 4.2 Classification of inspections. The following types of inspection shall be
26、conducted on this item. a. First article inspection b. Quality conformance inspection 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70668 (AR) 4.3 First article inspection. 4.3.1 Submission. The co.ntractor shall submit a first article samp
27、le as designated by the contracting officer for evaluation in accordance with provisions of 4.3.2. The first article sample quantities as indicated: O Part Participation Drawinq Quantity i i Propellant, M1, Form C, Type I Propellant, Black Powder Cartridge Case Assembly Pressure Cartridge Assembly D
28、isc Foam Paper, Filter Wadding MIL-STD-6 52 MIL-P-22 3 9366635 9366511 9366605 9366604 9366607 9366606 10 gram 10 gram 25 125 15 15 15 15 4.3.2 Inspection to be performed. See MIL-A-48078 and Table I specified herein. 4.3.3 Rejection. See MIL-A-48078. a 5 Provided by IHSNot for ResaleNo reproduction
29、 or networking permitted without license from IHS-,-,- MIL-P-70668 13 W 7797706 0356637 L c, II) U .rl !k o H L: I I t I I ! r r c Y 8 Z O F: u !k rn .II LL w P rn 3 o 4 P t. I II) c, c al c O Dl u a C Id 31 rl a E al II) II) Q 4 al tn m .rl U c, U Id u FI I-l rl rl mId m Id m -7 7 7 7 vi II) II) II
30、) II) a .rl .?I .rl .rl -3 3 3 3 I-! rl rl rl I I I O O O AI IO 01 I I I lW Ln Ln Kl dr! rl rl rl II) c, u al w al n 8 w i X w Ln O v, W W Cr) m . tn 3 n v n ; 84 2 8 O c, u .rl .rl w T3 al c, u al rl al II) al a rl rl Id -2 5 U tri O rl u4 O al rl a E a II) Id 12, 6 Provided by IHSNot for ResaleNo
31、reproduction or networking permitted without license from IHS-,-,-n1-P-70668 13 7779906 0356638 3 H E .:I ci u c .rl a, rl u ci i *d 2 0: i Li .rl Fril . U 3 Ep d 8 t cv ZT r k? K w Lp m ci c a, c i% E u a c m 3.i rl Q m m s 4 a, tn a .rl Li ci u : rl rl Cum rlrl rlCuW Cu* mm rlm mmm mm mm ril m . 0
32、. e e. m. rld ddd I I rld III O0 I I rlrl O00 I I O0 II 111 00 I I O0 mmm mm mm II Cumcv dd fir- rlrl Ln cv O m ri dldl dl a, E 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70bb 13 7777706 0356637 5 MIL-P-70668 (AR) 4.4 Quality conformance
33、 inspection. 4.4.1 Inspection lot formation. Inspection lots shall comply with the lot formation provisions of MIL-A-48078. In addition, inspection lots of cartridge assemblies shall contain: a. M1 Propellant from not more than one lot from one manufacturer. b. Propellant black powder from not more
34、than one lot from one manufacturer. c. Cartridge case assembly with primer from not more than one lot from one manufacturer. 4.4.2 Examination. See MIL-A-48078. a. Sampling plans. Unless otherwise specified in the Classification of Defects and Test Tables, sampling plans and procedures for major and
35、 minor defects shall be in accordance with MIL-STD-105, Single Sample Inspection Level II, Switching, By A.Q.L. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 i I l I l I I I I I t I I I t i I L L I I I I I l I I i I I I I I I l l l l l l l I I
36、I ri 8 iT t Li a 4 U pi c U .rl B h rl a E a, Io Io 4 al Io rd u a, tn 5 .rl Li ci U : rl . I-! -Y Id 0). I tnm Io Id. .rl W-Y 3 dP dp O0 O -Y- O O0 rl e. . QI .rl c Io C Y 3 Li O O PI 2i 8 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-l-i A w t
37、I u aJ 5 3 O PI 24 u ta rl a MIL-P-706b 13 7777706 03566qL 3 l-i a a, C .rl w a, a a, C O z a C a, C O .il +Ja, w 4 LI a, m-3 5 OU am a, C ur: .rl 88 o dl u O c F-! .d U a, c I U r .I- 3 n m Co o 3 o . - n O G3 f E O LI 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without
38、license from IHS-,-,-I I I I I I t I I I I I t I I i t 1 i I 1 I l l i I I I 1 I I I l I l I l l c P lu a - U U C I P I c: r E r i! rn - MIL-P-70668 13 W 7777706 035b642 5 W rl l-18 t ci C m d l-4 O pi gi u 4 ar L1 al C .d iu ar CI ar C O z Id u .d ci .d U u Provided by IHSNot for ResaleNo reproduct
39、ion or networking permitted without license from IHS-,-,-NIL-P-70bb 13 H 777770b 0356643 7 H z O U I3 u w PI CB z H w u ii O Fr z O u 3.i P D a H 2 31 rl Q VI u) d A al P 5 .ri U c, u al U 7 u) u) al :PI 2 !U * s 5 U dl UI U al pi O U 2 5 U c, rl rl al pi O U pi 5 al u) O pi X w pi O U 2 .ri ci CU a
40、al u rlcG do al o pipi OE WE E cG uEU c1 OU t4 U-ric,aJ.rl .ri uucu alalalmu P cG5d o 7 o 3rlu alai- - .ri 54J4JciE .ri alcc a C 7 O pi u o P C .rl Ud um cual Uu) U OC uc, c -ri 4 3 u5 pi o .ri rlC mm u) cale .ri u) Id WE 3Liuuo OPI uuupi rl m u c, OrlcvM*iCLnWb orlcv MWrn .4 0000000 coo O00 u mrlrl
41、rlrlrlrlrl -rlcvcv cvNCI U u -1 c c u) c, u) al +, 5 rl O u 5 5 c, O c al c c, 8 Ici 5 al 5 3 5 31 rl rl m al al Q rl rl m c u) al d pi .rl .ri % s u) 12, n e- n O t E O LL n v - n O h Li - 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-706
42、b 13 9779906 035664q 7 W MIL-P-70668 (AR) 4.4.3 Testinq. Testing is described in the First Article and Quality Conformance Inspection Tables. 4.4.4 Inspection equipment. The inspection equipment required to perform the examinations and tests prescribed in this specification is identified either dire
43、ctly or by reference, in the “paragraph reference/inspection method“ column of the First Article or Quality Conformance Inspection Tables herein. the contractor shall submit inspection equipment designs to the Government for approval in accordance with the terms of the contract. See Section 6 of MIL
44、-A-48078 and 6.2 herein. O 4.5 Methods of inspection. 4.5.1 Materials, components and processes. Compliance with all requirement by current and continuing examination of inspection and test: data to determine that all components (parts, subassemblies, and materials) have been inspected and tested an
45、d found to comply with their respective drawing and specification requirements, and that all specified manufacturing processes have been followed. 4.5.1.1 Visual and mechanical inspection. The visual, manual and mechanical inspections and tests shall verify compliance with the requirements of.Sectio
46、ns 3 and 5 of this specification in accordance with 4.4.2 herein and Table i. 4.5.2 Moisture content of M1 propellant. The moisture content of M1 DroDellant shall be determined at the time of -i loading. The moisture content shall be determined in accordance with MIL-STD-286, Method 101.3.2. 4.5.3 M
47、oisture content of black powder propellant. The moisture content of black powder propellant shall be determined at the time of loading. The moisture content shall be determined in accordance with MIL-STD-286, Method 101.3.2. 4.5.4 Environmental conditions. 4.5.4.1 High temperature function. Units sh
48、all be stabilized per MIL-STD-810, Method 501.2 at +1400F +50 and tested in accordance with 4.5.5. 4.5.4.2 Low temperature function. Units shall be stabilized per MI1-STD-810, Method 502.2 at -30F -5OF and tested in - accordance with 4.5.5. 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70bb 13 m 7777706 03566115 O m 4.5.5 Functioninq . 4.5.5.1 impact sensitivity, p rimer. The sample units shall be mounted in a test fixture. centerline with a 1.94 + .O2 ounce firing pin with a tip of approximately .lo0 spherical dia
