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 5835-01-090-0784
NSN 6220-01-296-6100
NSN 6685-00-365-5572
NSN 5998-00-200-8627
NSN 6110-01-004-9870
NSN 6110-01-464-6264
NSN 5975-01-072-9647
NSN 5945-00-597-2049
NSN 6220-00-036-5211
NSN 5945-01-411-0942
NSN 5935-00-027-4047
NSN 6320-00-695-3891