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 6650-00-147-8765
NSN 7035-01-473-7582
NSN 6110-00-489-1177
NSN 5935-01-371-1258
NSN 5950-01-527-3341
NSN 5999-00-008-5282
NSN 5990-01-421-5342
NSN 2925-01-270-1124
NSN 6685-01-026-0111
NSN 6145-01-270-5485
NSN 5999-00-283-8722
NSN 5835-00-025-9951