A washer or cone or disk shape with a centrally located hole, designed to accommodate a flat or oval head screw and provide additional bearing area on the material being fastened. It may or may not have a flush flange feature.
Classification: Washers other than lock washers, iron or steel
NSN 6145-00-185-4515
NSN 6240-00-224-1880
NSN 6645-00-599-8890
NSN 5855-01-593-3985
NSN 6135-00-548-2765
NSN 5999-01-462-0590
NSN 6130-01-538-1184
NSN 5935-01-410-2904
NSN 5920-01-406-4138
NSN 5895-01-492-0590
NSN 5990-01-498-0641
NSN 5855-01-112-7725