1、MIL-C-70636 13 W 7777706 0356472 6 5 -3 7-05 MIL-C-70636 (AR) 2 1QIFC.E 1.98s MILITARY SPECIFICATION CARTRIDGE, 20MM, ARMOR PIERCING-TRACER, M95 (PERCUSSION PRIMER) This specification is approved for use within the US Army Armament Munitions and Chemical Command, and is available for use by all Depa
2、rtments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers requirements, quality assurance provisions and preparation for delivery for Cartridge, 20mm, Armor Piercing Tracer, (APT), M95 for use in the M3 and MK16 20mm Automatic Weapon Systems. 2. APPLICABLE DOCU
3、MENTS 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 issue of these documents shall be those listed in the issue of the Department of Defense
4、Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. a SPEC IF I CAT IONS MIL I TARY MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification for STANDARDS MILITARY MIL-STD-105 -Sampling Procedures and Tables for Inspection b
5、y Attributes Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in Improving this document should be addressed to: Commander, US. Army Armament,Munitions and Chemical Command, Attn. AMSMC-QA, Picatinny Arsenal, New Jersey 07806-5000 by using the se
6、lf-addressed Standardiza- tion Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by. letter. .- AMSC N/A FSC 1305 DISTRIBUTION STATEMENT A. Approved for Gblic release; distribution is unlimited. fl THIS DOCUMENT CONTAINS ,.$4 PAGES. Provided by IHSNot for ResaleNo
7、 reproduction or networking permitted without license from IHS-,-,- MIL-C-70b36 13 7777706 03561173 MIL-(2-70636 (AR) MIL-STD-644 - Visual Inspection Standards and Inspection Procedures for Inspection of Packaging, Packing, and Marking for Small Arms Ammun it i on Ammunition and Components MIL-STD-6
8、51 - Visual Inspection Standards for 20mm 2.1.2 Other Government documents, drawinqs, and publications. The following other Government documents, drawings and publications form a part of this specification to the extent specified herein. Unless otherwise specified, the issues shall be those in effec
9、t on the date of the solicitation. DRAWINGS (See 6.5) US ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) PRODUCT AND PACKAGING DRAWINGS 12576573 - Cartridge, Armor Piercing Tracer, M95 12576575 - Charged Projectile, 20mm, AP-T for the M95 Cartridge 12576576 - Closing Cup 7553663 -
10、 Classification of Firing Casualties for: Case, Cartridge, 20mm, M21A1 and M21AlB1 INSPECTION EQUIPMENT DRAWINGS 7259443 7259469 7286068 7286069 7286070 7276071 7299942 7556901 11075131 Rack Cartridge Torque Test Gage Limit Check Taper Plug Gage Limit Check Taper Plug Gage Limit Check Plug Gage Limi
11、t Check Plug Gage Gage, Chamber Indicator Comparator Gage Fixture, Test PUBLICATIONS US. ARMY MATERIAL COMMAND AMCR 715-505- Ammuniton Ballistic Acceptance Test Methods, Volume 8, Test Procedure for 20mm Cartridges (Copies of specifications, standards, handbooks drawings, and publicat-ions required
12、by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-70b36 13 W 777770b 0356474 T = MI
13、L-C-70636 (AR) 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 MC standards), the text of this specification shall take precedence. Nothing in this specifi
14、cation, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3 REQUIREMENTS 3.1 General. . a. Material. Materials shall be in accordance with the applicable drawings and specifications. b. Manufacturing process. All parts and assemblies shall be man
15、ufactured by a process approved by the contracting officer, and no deviation from that process shall be made without prior approval (6.6) . 3.2 Cartridge. The cartridge shall comply with all the requirements specified on Drawing (Dwg.) 12576573, all associated drawings and with all requirements spec
16、ified in applicable specifications, a. Projectile extraction. The force necessary to extract the projectile from the cartridge case shall be 1100 to 2800 pounds, inclusive. b. Projectile torque. The projectile shall withstand a minimum torque of 10 inch pounds without movement. 3.3 Contamination of
17、enerqetic components. Extreme care shall be exercised to avoid contamination of primers and propellant by oil, grease or other foreign matter since such contamination can cause misfires, increased action time and lot rejection. 3.4 Functioning. The cartridge shall comply with the following: 3.4.1 Co
18、nditioned at 680F to 720F. - a. Velocity. The average velocity of the projectile shall be 2680 2 50 feet per second (fps) at 78 feet from the muzzle of the gun and the standard deviation of the velocity shall not exceed 40 fps. (see 6.7). 3 Provided by IHSNot for ResaleNo reproduction or networking
19、permitted without license from IHS-,-,-MIL-(2-70636 (AR) b. Pressure. The average chamber pressure (2) plus 0.84 times the average range (R) shall not exceed 51,000 pounds per square inch projectiles shall not vary from the average velocity projectiles by more that 100 fps. (see 6.8) of the chamber
20、pressure (psi). c. Waterproofness. The average velocity (wet) of (dry) of 3.4.2 Conditioned at ambient temperature. a. Function and casualty. Cartridges shall function without casualty when fired in the M3 or MK16 20mm automatic weapon systems. b. Accuracy. The average mean radius of all targets c.
21、Projectile trace. The projectile shall exhibit a shall not exceed 15 inches (accuracy) at a range of 600 yards. trace visible against a dark background for a minimum of 2.0 seconds. 3.4.3 Conditioned at -65OF. a. Action time. The action time of the sample cartridges and the average action time (y) p
22、lus four sample standard deviations shall not exceed 4.0 milliseconds (see 6.7). trace visible against a dark background for a minimum of 2.0 seconds. b. Projectile trace. The projectile shall exhibit a 3.4.4 Conditioned at +145OF. a. Projectile trace. The projectile shall exhibit a trace visible ag
23、ainst a dark background for a minimum of 2 seconds. in any of the test firings. 3.4.5 Safety. The projectile shall not stick in the gun bore 3.5 First article. When specified in the contract or purchase order, a sample shall be subjected to first article inspection in accordance with the technical p
24、rovisions herein (see 4.3 and 6.13). 3.6 Workmanship. The requirements for workmanship are as specified by applicable drawings, referenced specifications and the following: 3.6.1 Processing defects. The metal parts and assemblies shall be free of splits, perforations, scratches (other than draw scra
25、tches), folds wrinkles, buckles, bulges, dents, cracks, rupture, deformaties and other forms of substandard workmanship. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-7063b 13 W 9999906 03561176 3 W MIL-C-70636 (AR) 3.6.2 Cleanliness. All c
26、omponents and assemblies shall be free of foreign matter, such as oil, grease, corrosion, dirt, chips, etc. O 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is i- rsponsible for the performance of all in
27、spection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may utilize his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government re
28、serves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All items must meet all requirements of sections 3 and 5. The inspect
29、ions set forth in this specification shall become a part of the contractors overall inspection system of quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of assuring that all products or supplies submitted to the
30、Government for acceptance comply with all requirements of the contract. Sampling in quality conformance does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of any defective material. inspection shall be conducted on t
31、his item. 4.2 Classification of inspections. The following types of a. First Article Inspection (see 4.3) b. Quality Conformance Inspection (see 4.4) 4.3 First article inspection. 4.3.1 Submission. The contractor shall submit a first article as designated by the Contracting Officer for evaluation in
32、 accordance with the provisions of 4.3.2. The first article sample shall consist of the following items in sample quantities as indicated. Parts description Draw i nq Closing, Cup 12576576 Charged Projectile 12576575 Cartridge 12576573 Packaging (conta iner s) (see 5.1) Quantity 125 125 480 7 4.3.2
33、Inspections to be performed. See MIL-A-48078 and Table I -specified herein. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- _- MIL-C-70636 13 W 7777706 03561177 5 m MIL-C-70636 (AR) 4.3.3 Rejection. See MIL-A-48078. Failure of the original first a
34、rticle sample to be in accordance with the applicable drawings and requirements of Table I, as specified herein will result in sample disapproval. . 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c O U u a, rn e .d a, rl u %-I U .d e: U rn u .d Er
35、 . H w a B c p: R U pr U C r I c I i c 5 r w t cv 8 t rl z MIL-C-70b3b 13 H 7777706 035b117 7 W dl to U c a, c O B 8 5 c m In ci, c 4 a b a O N 4 a, P 5 -4 u U u 2 al m rl In -9 . . . cv Cr) * cv N m m * . Orl Orl Orl orlorl orl m In O cv N 02 rl ri w O0 O cvN CJ a, 1 v U a, rl .d U u a, an O u pi 8
36、 n N U idh50 Ida, rlE hrn Lnrl WU a 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70636 13 W 7797706 0356477 7 m dl u) 0 C a, C O a u a C m m cn E z h 5 . B O N . al P a .rl w 0 MQI rlw dI- m m m-Ml . . * m . o O0 O00 O00 o cu “ U“ 0mLn m c
37、u c O U u m LI U X a, .d Er Ohi 6 3.( O 14 al n 3 E m O KJ 7 L O LL 4 Y O L L. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-70636 13 W 7777706 035bllb 6 W u e O .Fri 2 O u I U I H c 8 I I - E 31 x E $ XE E Y w L Y .: I L a r P P a, m a, m P
38、a, a a,a .ri c E LI ic, rl +J rl LI Pa m cc u .ri m m ma P m c *c u rl c Id am 2 II! 5m u mai m 25 w m-ri 15 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-70636 13 U 999990b 03561187 8 i MIL-C-70636 (AR) 4.4.3 Tests. The test listed in 4.4.2
39、.4 shall be performed on each cartridge lot in accordance with the test methods prescribed in 4.5. Sample size and acceptance criteria for each test shall be as specified. Only cartridges which have met the visual and dimensional requirements and which have been selected in such a manner that the sa
40、mple is representative of the entire lot shall be used in the tests. The selected cartridges shall be mixed thoroughly before being divided into samples for the various tests. 4.4.3.1 Projectile extraction. a. Failure of two or more sample cartridges to comply with the minimum requirement shall caus
41、e rejection of the lot. If one cartridge of the sample fails to comply with the minimum requirement, a second sample of 20 cartridges shall be tested. The lot shall be rejected if two or more cartridges of the combined sample fail to comply with the minimum requirement. b. Failure of four or more ca
42、rtridges to comply with the maximum requirement shall be cause for rejection of the lot. If more than one but less than four cartridges fail to comply with the maximum requirement, a second sample of 20 cartridges shall be tested. The lot shall be rejected if five or more cartridges of the combined
43、sample fail to comply with the maximum requirement. 4.4.3.2 Projectile torque. Failure of two of more of the sample cartridges to comply with the specified torque requirement shall cause rejection of the lot. If one cartridge of the sample fails to comply, a second sample of 20 cartridges shall be t
44、ested. The lot shall be rejected if two or more cartridges of the combined samples fail to comply with the applicable requirement. rejected if in any firing test one or more of the following casualties occur: 4.4.3.3 All cartridqe firinq tests. The lot shall be a. Misfire associated with c or d of 6
45、.10. b. Projectile remaining in bore. . c. Metal parts separation, except rotating band separation (see 6.11.1). 4.4.3.4 Functioninq at 68OF to 72OF. If any requirement(s) in 3.4.1 is not achieved on the first sample, a second sample shall be tested for the failed parameter (s) . 16 Provided by IHSN
46、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70636 (AR) a. Velocity. If the sample fails to comply with either or both requirements a retest sample of 40 cartridges shall be tested. The lot shall be rejected if the retest samples fails to comply with the ap
47、plicable requirement (s) . (See 6.7) times the average range (5) of the sample cartridges exceeds 51,000 psi a retest sample of 40 cartridges sh-1 be tested. The lot shall be rejected if the average pressure (X) plus 0.91 times the average range (R) of the retest sample fails to comply with the appl
48、icable requirements. (See 6.8). b. Pressure. If the average pressure (x) plus 0.84 c. Waterproofness. If the average velocity (wet) of sample fails to comply with the applicable requirement, a retest sample of 40 cartridges shall be tested. The lot shall be rejected if the average velocity (wet) dif
49、fers by more than 100 fps from the average velocity (dry) of 40 additional sample cartridges fired to establish a new base for comparison. The lot shall not be penalized for failure o the last named sample cartridges to comply with the requirements of 3.4.1.a. 4.4.3.5 Function and casualty. Two-hundred cartridges shall be subjected to this test. The lot shall
