ARMY MIL-C-50797 (1)-1975 CASE CARTRIDGE 20MM M103A1《M103A1型20MM弹药筒》.pdf

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1、MIL-C-50777 (3) 13 m 7779706 0333227 4 f s3705 MIL-C-50797 (MU) AMENDMENT 1 28 May 1975 MILITARY SPECIFICATION CASE, CARTRIDGE, 20MM, Ml03A1 This amendment forms a part of Military Specification MI-C-50797(u), 25 May 1973, and is approved for use by all Departments and Agencies of the Department of

2、Defense. Para 4.2.1, delete para 4.2.1 and substitute the following: “4.2.1 Initial production sample. -At the beginning of regular production a sample shall.be submitted in accordance with contract requirements and shall consist of 2300 cases. The sample shall be manufactured using the same equipme

3、nt, processes and procedures as will be used in regular pro- duction. Sample shall be divided and tested as follows: 100 Cases - Physical and dimensional examination and test 800 Cases - Function and casualty test, ambient temperature, M61 gun 800 Cases - Function and casualty test, ambient temperat

4、ure, M39 gun 100 Cases - Function and casualty test, -65“F, M61 gun 100 Cases - Function and casualty test, -65“F, M39 gun 100 Cases - Function and casualty test, +165F, M61 gun 100 Cases - Function and casualty test, +165“F, M39 gun 100 Cases - Function and casualty test, ambient temperature, 100 C

5、ases - Function and casualty test, ambient temperature, excess pressure, M61 gun excess pressure, M39 gun The acceptance criteria specified in Table II for the combined sample will be used and applied independently to each of the above phases of the function and casualty test. equipment, processes a

6、nd procedures as will be used in regular production. Identification shall be in accordance with MIL-STD-1168.“ The sample shall be manufactured using the same materials, Para 4.3.3.1, under Maior: 118. delete “2.664“ and substitute “2.837 125. add “Exterior“ before the words, Protective finish. FSC

7、i305 , THIS DOCUMENT CONTAINS 2 PAGES. A Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-P I .*_ .c “ MIL-C-50797 U) f 1. AMENDMENT1 0 Para 4.3.4 Tests, - delete Table I only and substitute the following: *k Table I Test Hardness Cold shut Corrosion

8、resistance Function and casualty Sample Size Rqmt Para %“ l/ 13 3.4 21 3.3 3.5 41 400 3.7 - - 3/ 13 3.6.3 .-r -. .- s- . .-* . Para 4.3.4 Tests, Table I footnote 41, delete the last sentence, Para 4.3.4 Table II, after Function &Casualty Test add footnote Para 4.3.4 Table II, add after footnote c/ t

9、he following: . .i symbol Il/. “3 “D/ The excess pressure, ambient, low and high temperature phases will be considered as separate tests when firing the Initial production sample. = Para 4.3.4 Table II, under Detached metal, delete the line “Neck L shear - - - - - - -11 . and substitute the followin

10、g: 1 O 1 O 1 O 1 ! “Neck shear c/ o Para 4.3.6 Inspection Equipment. in sixth line delete “B11057228“ and - V . sub s ti tut e “B 11 075 228 I. . - Custodian: Army -Mu Review: Preparing Activity: Project No. 1305 -A782 U. S GOVERNMENT PRINTING OFFICE: 1975-60-766/5023 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-