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 5950-00-927-2984
NSN 5960-01-319-3932
NSN 6150-01-022-8600
NSN 4140-00-288-9826
NSN 6620-01-342-0470
NSN 6645-01-218-5234
NSN 5925-01-453-6532
NSN 6240-01-386-4594
NSN 5960-00-898-9145
NSN 5985-01-459-8010
NSN 5895-01-183-4468
NSN 6130-01-422-4709