MS9555C, MILITARY STANDARD: SCREW, MACHINE-DOUBLE HEXAGON EXTENDED WASHER HEAD, CORROSION AND HEAT RESISTANT STEEL, .164-36 UNJF-3A (06 NOV 1986) [SUPERSEDED BY SAE-AS9555].
MS9555C, MILITARY STANDARD: SCREW, MACHINE-DOUBLE HEXAGON EXTENDED WASHER HEAD, CORROSION AND HEAT RESISTANT STEEL, .164-36 UNJF-3A (06 NOV 1986) [SUPERSEDED BY SAE-AS9555].