MS9821 (NOTICE 1), MILITARY STANDARD: BOLT, MACHINE - HEXAGON HEAD, DRILLED, 1 HOLE, PD SHANK, AMS 5643, .500-20 UNJF-3A (10 JUN 1994) [SUPERSEDED BY SAE-AS9821].
MS9821 (NOTICE 1), MILITARY STANDARD: BOLT, MACHINE - HEXAGON HEAD, DRILLED, 1 HOLE, PD SHANK, AMS 5643, .500-20 UNJF-3A (10 JUN 1994) [SUPERSEDED BY SAE-AS9821].