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: Copper washers including spring washers not threaded
NSN 6220-00-552-0667
NSN 6645-01-341-6616
NSN 6145-00-713-5189
NSN 6220-01-202-2771
NSN 6620-01-375-6523
NSN 7035-01-348-1257
NSN 5996-00-156-5010
NSN 6620-01-382-2921
NSN 5975-01-364-0312
NSN 6105-00-329-4012
NSN 6145-00-826-9574
NSN 5999-01-625-6075