MS9493A, MILITARY STANDARD: BOLT, MACHINE - HEXAGON HEAD, FULL SHANK, AMS 5731, .4375-20 UNJF-3A (17 NOV 1969) [SUPERSEDED BY SAE-AS9493].
MS9493A, MILITARY STANDARD: BOLT, MACHINE - HEXAGON HEAD, FULL SHANK, AMS 5731, .4375-20 UNJF-3A (17 NOV 1969) [SUPERSEDED BY SAE-AS9493].