MIL-B-12253E, MILITARY SPECIFICATION: BRAKES, MUZZLE, CANNON, STEEL CASTINGS FOR (03 NOV 1988)

MIL-B-12253E, MILITARY SPECIFICATION: BRAKES, MUZZLE, CANNON, STEEL CASTINGS FOR (03 NOV 1988)., This specification supports the acquisition of alloy steel castings for cannon muzzle brakes.