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 5990-01-290-4787
NSN 5920-01-234-2368
NSN 6320-01-506-9439
NSN 5835-00-092-1136
NSN 4140-00-236-1089
NSN 5910-01-025-8870
NSN 6150-01-099-2467
NSN 5925-01-361-8836
NSN 5965-01-073-1014
NSN 5905-00-268-2535
NSN 5910-01-147-0999
NSN 5965-01-597-3976