MS9720A (NOTICE 1), MILITARY STANDARD: BOLT, MACHINE-DOUBLE HEXAGON, EXTENDED WASHER HEAD, DRILLED, SILVER PLATED, CORROSION AND HEAT RESISTANT STEEL, .5625-18 UNJF-3A (21 OCT 1991) [NO SUPERSEDING DOCUMENT].
MS9720A (NOTICE 1), MILITARY STANDARD: BOLT, MACHINE-DOUBLE HEXAGON, EXTENDED WASHER HEAD, DRILLED, SILVER PLATED, CORROSION AND HEAT RESISTANT STEEL, .5625-18 UNJF-3A (21 OCT 1991) [NO SUPERSEDING DOCUMENT].