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 5965-01-026-1752
NSN 6110-00-396-1604
NSN 5935-01-519-9349
NSN 5925-00-255-2048
NSN 5985-01-076-5094
NSN 6320-01-294-7161
NSN 5835-01-297-1909
NSN 6240-00-156-1607
NSN 6620-01-519-2628
NSN 5996-01-040-2606
NSN 2925-01-364-7926
NSN 5915-00-518-4656