1、*r MIL-C-70949 (31 13 9999906 6500L3 8 I I I I I I I I I INCH-POUND 1 MIL-C-70949 (AR) AMENDMENT 3 12 January 1992 SUPERSEDING AMENDMENT 2 1 June 1991 MI LI TA RY SP E CIF I C AT ION CASE, CARTRIDGE, 105MM, M115BlA1 This anendinent forms a part of Military Specification MIL-C-70949 (AR), dated 12 Ja
2、nuary 1990, and is approved for use by the U. S. Army Arrnanient, Munitions and Chemical Corninand and is available for use by all Departments and Agencies of the Department of Defense. PAGE 1 Title: Delete 11M115BIE111 and substitute llM1 15B1A111. 1.1 : Delete 11M115BIE111 and substitute “M1 15B1A
3、lT1. PAGE 2 2.1 : Delete “M1 15BIE111 and substitute “Ml 15BlA111. PAGE 5 4.4.1 : Delete *1M115BIE111 and substitute “Ml lSBlA1“. PAGE 6 Table I Title: Delete “M1 15BIEPI and substitute “Ml lSBIA1ll. PAGE 7 Table I Title: Delete “Ml 158IEII1 and substitute “Ml lSBIA1ll. I AMSC N/A 1 of 11 FSC 1315 .
4、 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70949 (3) 13 W 9999906 0500184 T I I I PAGE 10 4.5.5.1: Delete page 10, paragraph 4.5.5.1 in its entirety and sub
5、stitute attached 4.5.5.1. PAGE 11 4.5.5.2: Delete page II, paragraph 4.5.5.2 in its entirety and substitute attached 4.5.5.2. PAGE 12 4.5.5.3: Characteristics 118 and 119, delete “protrusion“ and substitute “boss1. PAGE 14 4.5.5.4: Delete pages 14, 15 and 16, and substitute attached pages (14) and (
6、15). PAGE 16 Add attached page (16), paragraph 4.5.5.5. Add attached page (16.a), paragraph 4.5.5.6. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-n m 4 mc s v U W ln 3 W c, O S n 2 E -s u *I- C 5 n Ln 03 n aJ IL n x) Provided by IHSNot for Resal
7、eNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70949 (31 13 9999906 0500191 7 z O H b u W pi rn z H W u z 4 U * i3 H cl 4 3 c3 QI rl a -LI 6. %m a -0 rl m 5 C (UmCu mm 777 75 vivim vivi HHH HH HHH HH aloa, a, drld rlrl Dax3 DD mmm mm i3bb Wb 9 (16.a) Provided by IHSNot f
8、or ResaleNo reproduction or networking permitted without license from IHS-,-,-ci e MIL-C-70949 (3) 13 W 999990b 0500192 9 W MIL-C-70949 (AR) AMENDMENT 3 PAGE 17 4.56.2.2: Delete: “Five samples shall be randomly selected for testing.“ and substitute: “Five samples of each cartridge case component, fi
9、ve 4“ X 6“ test panel samples with a minimum of one sample per coil, and five cartridge case assemblies shall be randomly selected for testing. PAGE 18 * 4.5.6.4.1 Table III: Item 5: Delete: IfPropellant gas leakage (Cup burn mark)1f and substitute: llPropellant gas leakage between Body and Cup (Cup
10、 burn mark extending 1/4“ aft of the joint)lf. Item 6: Delete: “Propellant gas leakage (Body burn mark) 3, 4l. Item 7: Delete: 11711 and substitute tr611. Add: “7. Crack or split through Cup O 1 8. Crack or split through Base O 1 It . PAGE I9 * 4.5.6.4.2 Table IV: Item 5: Delete: llPropellant gas le
11、akage (Cup burn mark)“ and substitute: flPropellant gas leakage between Body and Cup (Cup burn mark extending 1/4l aft of the jointIf. Item 6: Delete: “Propellant gas leakage (Body burn mark) Item 7: Delete: fi711 and substitute 1161f. Add: “7. Crack or split through Cup O 1 Not permitted 2, 3 Not p
12、ermi tted“. 8. Crack or split through Base O 1 Not permitted“. 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70949 (31 13 = 999990b 0500193 O e MIL-C-70949 (AR) AMENDMENT 3 PAGE 22 * 4.6.7.1.4.4 Delete: !The cartridge case shall be examine
13、d for entry of propellant gas into the gun chamber by passing through any component or component interface. Mechanisms of failure include but are not limited to burn-through, rupture, joint failure, cracks and gas flow between body plies. Leakage is evidenced by the presence of burn marks on the com
14、ponent c a us i n g fa i lu r e. and substitute: IlThe cartridge case shall be examined for leakage of propellant gas into the gun chamber to the rear of the Body-Cup interface. Mechanisms of failure include but are not limited to burn-through, rupture, joint failure, cracks and splits. Leakage is e
15、videnced by the presence of burn marks on the Cup or Base.“ The margins of this Amendment are marked with an asterisk or vertical lines to indicate where changes (additions, modifications, corrections, deletions) from the previous amendment were made. This was done as a convenience only and the Gove
16、rnment assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous amendment. Cu s t od i an : Army - AR Preparing activity: Army - AR ( Project 13 1 S-AD6-7) 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
