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 5855-01-280-9735
NSN 5920-00-930-4063
NSN 5895-01-542-9330
NSN 5965-01-534-2818
NSN 5985-01-141-6835
NSN 5950-01-422-0467
NSN 6150-00-256-3930
NSN 5960-01-585-6385
NSN 2925-01-239-6044
NSN 6145-00-422-2326
NSN 6240-00-918-2426
NSN 6145-01-026-0030