MS9111 (NOTICE 1), MILITARY STANDARD: BOLT, MACHINE-DOUBLE HEXAGON EXTENDED WASHER HEAD, CLOSE TOLERANCE SHANK, AMS 5731, .250-28 UNJF-3A (03 OCT 1991

MS9111 (NOTICE 1), MILITARY STANDARD: BOLT, MACHINE-DOUBLE HEXAGON EXTENDED WASHER HEAD, CLOSE TOLERANCE SHANK, AMS 5731, .250-28 UNJF-3A (03 OCT 1991) [SUPERSEDED BY SAE-AS91111].