MS9490A, MILITARY STANDARD: BOLT, MACHINE - HEXAGON HEAD, FULL SHANK, AMS 5731, .250-28 UNJF-3A (17-NOV-1969) [S/S BY SAE-AS9490]
MS9490A, MILITARY STANDARD: BOLT, MACHINE - HEXAGON HEAD, FULL SHANK, AMS 5731, .250-28 UNJF-3A (17-NOV-1969) [S/S BY SAE-AS9490].