MS9449A (NOTICE 1), MILITARY STANDARD: SCREW MACHINE HEXAGON HEAD STEEL 138-40 UNJF-3A (15 OCT 1999) [SUPERSEDED BY SAE-AS9449].
MS9449A (NOTICE 1), MILITARY STANDARD: SCREW MACHINE HEXAGON HEAD STEEL 138-40 UNJF-3A (15 OCT 1999) [SUPERSEDED BY SAE-AS9449].