Standard WASHER, FLAT, COUNTERSUNK CORROSION AND HEAT RESISTANT STEEL (UNS S66286) 2019-12-27 CURRENT AS9768
Standard WASHER, FLAT – STEEL AMS6437 OR AMS6485 DIFFUSED NICKEL-CADMIUM PLATED, COUNTERSUNK 2011-08-03 HISTORICAL AS9482A
Standard WASHER, FLAT – STEEL AMS6437 OR AMS6485 DIFFUSED NICKEL-CADMIUM PLATED, COUNTERSUNK 2012-02-02 CURRENT AS9482B