1、i. HIL-C-bO275B 13 W 777770b 0337244 s -3 7- 4s- MIL-C- 6027 5B (AR) MIL-C-6027 5A (MU) 5 February 1971 MILITARY SPECIFICATION CARTRIDGE, 2OMM, TARGET PRACTICE, M204 This specification is approved for use within the US 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 covers requirements, quality assurance provisions and preparation for delivery for Cartridge, 20mm, Target Practice, M204, for use in the M3 and MK16 20mm Automatic Weapon Systems. 2. APPLICABLE DOCUMF,NTS 2.1
3、 Government documents. 2.1.1 Specifications, standards and handbooks. The following specifications, standards and handbooks 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
4、of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS MILITARY MIL-A-4 80 7 8 - Ammunition, Standard Quality Assurance Provisions, General Specification for Beneficial comments (recommendations, additions, deletions) and any perti
5、nent data which may be of use in Improving this document should be addressed to: Commander, U.S. Army Armament,Munitions and Chemical Command, Attn. AMSMC-QA. Picatinny Arsenal. New Jersey 07806-5000 by using the self-addressed Standardiza- tion Docum.ent Improvement Proposai (DD Form 1426) appearin
6、g at the end of this document or by letter. FSC 1305 DISTRIBTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-b0275B 13 m 7797706 03372i.15 T = I d STANDARDS MILITARY MIL-S
7、TD-105 - MIL-STD-644 - MIL-STD-651 - MIL-C- 60 27 5B (AR) Sampling Procedures and Tables for Inspection by Attributes Visual Inspection Standards and Inspection Procedures for Inspection of Packaging, Packing and Marking for Small Arms Ammunition Visual Inspection Standards for 20mm Ammunition and C
8、omponents 2.1.2 Other Government documents, drawings and publications. The following other Goverscent documents, drawings and publications form a part of this specification to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of solicitation. DR
9、AWINGS (See 6.5) US ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) PRODUCT AND PACKAGING DRAWINGS 7259106 - Cartridge, 20mm, Target Practice, M204 7553663 - Classification of Firing Casualties for: Case, Cartridge, 20m, M21A1 and M21AlB1 INSPECTION EQUIPMENT DRAWINGS 7259443 7259
10、469 7286068 7286069 7286070 7276071 -7296962 7299942 7556901 11075131 Rack Cartridge Torque, Test Gage Limit Check Taper Plug Gage Limit Check Taper Plug Gage Limit Check Plug Gage Limit Check Plug Gage Indicator Gage Chamber Gage Indicator, Comparator Gage Fixture, Test PUB LI CATIONS US. ARMY MATE
11、RIAL COMMAND AMCR 715-505- Ammunition Ballistic Acceptance Test Methods, Volume 8, Test Procedure for 20mm . Cartridges 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-b0275B 13 a 7977906 03372Lib L MIL-C-60 27 5B (AR) (Copies of specificatio
12、ns, standards, handbooks, drawings, and publications required by manufacturers in connection with specific acquisition functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Order of precedence. In the event of a conflict between the text of this spe
13、cification 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, however shall supersede applicable laws and regulations unless specific exemption has b
14、een 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 manufactured by a p-rocess approved by the contracting officer, and no deviation from that process shal
15、l be made without prior approval (6.6). 3.2 Cartridge. The cartridge shall comply with all the requirements specified on Drawing (Dwg.) 7259106, all associated drawings and with all requirements specified in applicable specifications, a. Projectile extraction. The force necessary to extract theproje
16、ctile 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 energetic components. Extreme care shall be exercised to avoid contamination of primers and propellant
17、 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 Conditioned at 68OF to 720F. a. Velocity. The average velocity of the projectile shall be 2680 5 50 fee
18、t 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 permitted without license from IHS-,-,-MIL-C-bO275B 13 M 777770b 0337247 3 M * MIL-C-60275B (AR) b. Pre
19、ssure. The average chamber pressure (x) plus 0.84 times the average range (E) (see 6.8) of the chamber pressure shall not exceed 51,000 pounds per square inch (psi). c. Waterproofness. The average velocity (wet) of projectiles shall not vary from the average velocity (dry) of projectiles by more tha
20、t 100 fps. 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 shall not exceed 15 inches (accuracy) at a range of 600 yards. 3.4
21、.3 Conditioned at -650F. a. Action time. The action tifie of the sample cartridges and the average action time (X) plus four sample standard deviations shall not exceed 4.0 milliseconds (see 6.7) . 3.4.4 Safety. The projectile shall not stick in the gun bore in any of the test firings. 3.5 First art
22、icle. When specified in the contract or purchase order, a sample shall be subjected to first article inspection in accordance with the technical provisions herein (see 4.3 and 6.13). 3.6 Workmanship. The requirements for workmanship are as specified by applicable drawings, referenced specifications
23、and the following: 3.6.1 Processing defects. The metal parts and assemblies shall be free of splits, perforations, scratches (other than draw scratches) , folds wrinkles, buckles, bulges, dents, cracks, rupture, de format ies and other forms of subs tandard workmanship. free of foreign matter, such
24、as oil, grease, corrosion, dirt, chips, etc. 3.6.2 Cleanliness. All components and assemblies shall be I 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract ar purchase order, the contractor is responsible for the performance of all inspectio
25、n requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may utilize his own or any other 4 . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-602758 13 7777906 03372q 5 MIL-C-602 75B
26、(AR) 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 specification where such inspections are deemed necessary to assure supplies and
27、services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All items must meet all requirements of sections 3 and 5. The inspections set forth in this specification shall become a part of the contractors overall Inspection system or quality program. inspection requirements in
28、the specification shall not relieve the contractor of the responsibility of assuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in quality conformance does not authorize submission of known defective material, eithe
29、r indicated or actual, nor does it commit the Government to acceptance of any defective material. The absence of any 4.2 Classification of inspections. The following types of inspection shall be conducted on this item. a. First Article Inspection (see 4.3) b. Quality Conformance Inspection (see 4.4)
30、 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 accordance with the provisions of 4.3.2. The first article sample shall consist of the following items in sample quantities as indicated. Parts desc
31、r i ption Drawing Quantity Car t r i dge Pac kag ing (container s ) (see 5.1) 7259106 380 7 4.3.2 Inspections to be performed. See MIL-A-48078 and Table I specified herein. 4.3.3 Rejection. See MIL-A-48078. Failure of the original first article sample to be in accordance with the applicable drawings
32、 and requirements of Table I, as specified herein will result in sample disapproval. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-60275B 13 a 779990b 0337247 7 W c a a P U t- 0 C u I c I c - f r t3 t 8 t rl i dl * O N c 4 k3 El 4 O N a, bi
33、 a 4 U ci L) 4 2 rl N * * a rl o ni -l*l In Od orlorlorl O 03 M O0 NNO N O00 NNN C O .ri c, u m U U x a, !iL 8 U a, rl .d c, u a, -n O U PI M U a, tn U m c u O .d U m CC *d o E mc, um cu o *rl uw .d +)LI rl rlci o Ua, pi3 2 $: ? -I a u 4. u. . tJrlCUm 04 came mw+ CO FI no O00 O00 o U arl r-lrlrl 44r
34、-l rl L) P .e. e 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-m 8 t cv ff MIL-C-60275B 13 W 7777706 0337253 7 W rlrlrlrl ri rlrl rlrl rlrl (dmma (d ma (dm (dm 7735 7 75 77 .d .rl .rl .rl .rl .rl .rl .d .rl .rl rnrnrnrn (II ix rnrn rnrn 3333 B 33
35、 33 33 O000 +*-Y O * O0 -Y* O0 -Y* . a, rl Q a a,tn ma, (dri b li (IIrn .rl ao U. . m. . orlmm-Yu, Io fiCo mo rl cooooo o O0 orl Fi - requirements. Additional cartridges may be required by the test acility. 6.14 Changes from previous issues. Asterisks are not used in this revision to identify change
36、s with respect to the previous issue, due to the extensiveness of the changes. 6.15 Subject term (key word) listinq. Target Practice Small Arms Ammunition 20mm Automatic Weapon Systems Custodian: Army-AR Preparing activity: Army-AR (Pro j ect 13 O 5-AC 96) 19 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
