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 5990-01-646-6149
NSN 5996-01-169-4794
NSN 7035-00-968-4848
NSN 5935-00-773-3316
NSN 5910-00-919-6257
NSN 6130-01-528-2972
NSN 5855-01-490-2749
NSN 5855-00-832-9341
NSN 5945-00-893-6677
NSN 6645-01-390-3442
NSN 5835-00-419-6576
NSN 6240-01-633-9357