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 6685-01-386-5129
NSN 5965-01-360-0454
NSN 5960-01-478-9493
NSN 5835-01-014-4574
NSN 5998-00-283-9547
NSN 6685-00-147-8045
NSN 6610-01-644-2546
NSN 6105-01-334-9807
NSN 5910-01-633-2048
NSN 5945-01-441-9370
NSN 5996-00-548-7567
NSN 5950-01-634-0677