NAVY MIL-P-18942 A (3)-1971 PROPELLANT FOR 20MM ANTI-AIRCRAFT GUN MARK 12《20MM防空用枪 MARK 12推进剂》.pdf
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1、 - r- 2 MI L-P-I8942A(OS) Amendment 3 25 August 1971 Supersed i ny Amendment 2 23 March 1966 MILITARY SPECIFICATION PROPELLANT FOR 20 MM AIRCRAFT GUN MARK 12 This amendment forms a part of Military Specification MlL-P-l8942A(NOrd) dated 18 December 1956 and has been approved for use by the Naval Ord
2、nance Systems Command, Department of Navy. By this amendment, basic specification MIL-P-l8942A(NOrd) is changed to read Mlt-P-I8942A(OS), and throughout the specification “Bureau of Ordnance shall be changed to “Naval Ordnance Systems Command“ and “BuOrd shall be changed to “NAVORDSYSCOM“ . I. Pace
3、I, Paragraph 2.1, Specifications, Military, Delete “MIL-P-11960 Propellants, General Specifications for Methods of Inspection, Sampling, and Testing“. Substitute “MIL-STD-256 Propellants; Sampling, Inspection and Testing“, 2, Page 2, paragraph 2.2, delete in its entirety and substitute: “2.2 Other p
4、ublications. The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated the issue in effect on date of invitation for bids shall apply. Code of Federa 1 Reau i at ions 49 CFR 171-178 Hazardous Materials Reguations, Department of Transportatio
5、n XANUALS Department of Defense 4 I 45.26M DOD Contractors Safety Manual for Ammunition Explosives and Related Dangerous Material (Applications for copies of the above publications should be addressed to Superintendent of Documents, Government Printing Office, Washington, D.C. 20402)“. 3. Page 5, Pa
6、ragraph 3.12.1, Delete in its entirety and substitute 3.12.1: “Action Time. (See 6.3.2). When assembled in the 20 mm target practice round, the propellant shall ignite properly with the standard M52A3BI primer, The propellant action time shall be determined by firing 50 rounds in a Mann barrel. Acti
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