MIL-C-46540B (AMENDMENT-1) MILITARY SPECIFICATION: CASE, CARTRIDGE: 20 MM - M103 (12-AUG-1976) [S/S BY MIL-DTL-46540C]
MIL-C-46540B (AMENDMENT-1) MILITARY SPECIFICATION: CASE, CARTRIDGE: 20 MM - M103 (12-AUG-1976) [S/S BY MIL-DTL-46540C]., Reactivated after 3 May 2006 and may be used for new and existing designs and acquisitions.