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 5990-01-364-0813
NSN 6105-01-029-3764
NSN 5915-01-145-5340
NSN 5905-01-258-5030
NSN 5950-01-391-6550
NSN 5998-01-071-0674
NSN 6105-00-802-6603
NSN 5910-00-489-1414
NSN 5990-00-252-1702
NSN 5996-01-227-2555
NSN 5935-01-264-5421
NSN 6150-01-426-2197