MS9821, MILITARY STANDARD: BOLT, MACHINE - HEXAGON HEAD, DRILLED, 1 HOLE, PD SHANK, AMS 5643, .500-20 UNJF-3A (11 MAR 1970) [SUPERSEDED BY SAE-AS9821].
MS9821, MILITARY STANDARD: BOLT, MACHINE - HEXAGON HEAD, DRILLED, 1 HOLE, PD SHANK, AMS 5643, .500-20 UNJF-3A (11 MAR 1970) [SUPERSEDED BY SAE-AS9821].