MS9574B, MILITARY STANDARD: BOLT, MACHINE-DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, PD SHANK, SILVER PLATED, .190-32 UNJF-3A (30 SEP 1989) [SUPERSEDED BY SAE-AS9574]
MS9574B, MILITARY STANDARD: BOLT, MACHINE-DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, PD SHANK, SILVER PLATED, .190-32 UNJF-3A (30 SEP 1989) [SUPERSEDED BY SAE-AS9574].