MS9222A (NOTICE 2), MILITARY STANDARD: BOLT, MACHINE-STEEL DIFFUSED NICKEL-CADMIUM PLATE, DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, .500-20 UNJF-3A (29 AUG 1994).
MS9222A (NOTICE 2), MILITARY STANDARD: BOLT, MACHINE-STEEL DIFFUSED NICKEL-CADMIUM PLATE, DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, .500-20 UNJF-3A (29 AUG 1994).