MS9220A (AMENDMENT 1), MILITARY STANDARD: BOLT, MACHINE-STEEL DIFFUSED NICKEL-CADMIUM PLATE, DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, .375-24 UNJF-3A (24 JUL 2001).
MS9220A (AMENDMENT 1), MILITARY STANDARD: BOLT, MACHINE-STEEL DIFFUSED NICKEL-CADMIUM PLATE, DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, .375-24 UNJF-3A (24 JUL 2001).