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 2925-01-315-0816
NSN 5975-01-489-6159
NSN 6650-01-619-9986
NSN 6150-01-408-4284
NSN 5855-01-410-8979
NSN 6320-00-456-0836
NSN 5965-00-469-5009
NSN 4140-00-833-6239
NSN 5935-01-461-3299
NSN 5935-01-463-7807
NSN 5915-01-014-1042
NSN 4140-01-100-0743