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 5905-01-406-6007
NSN 5999-01-014-3798
NSN 5945-00-165-3878
NSN 6130-01-033-4206
NSN 6620-01-241-2996
NSN 6135-01-142-6456
NSN 6220-01-387-9716
NSN 4140-01-571-6453
NSN 6105-01-628-3534
NSN 5910-01-140-5583
NSN 5910-00-799-9285
NSN 6130-00-054-9374