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 6145-01-166-3714
NSN 5930-00-259-7150
NSN 5855-01-459-9254
NSN 6145-00-987-3401
NSN 6150-01-374-2206
NSN 6135-00-078-9931
NSN 5975-00-518-3275
NSN 6685-01-627-0516
NSN 5998-00-258-4992
NSN 6220-01-510-6706
NSN 5935-00-548-5440
NSN 5925-01-364-9184