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 6610-00-250-5344
NSN 5930-01-220-9565
NSN 6135-00-152-8729
NSN 5950-01-596-5787
NSN 5996-00-538-4182
NSN 5930-00-959-6346
NSN 5855-01-429-8702
NSN 5920-01-044-4877
NSN 5999-01-322-3273
NSN 7035-00-153-3826
NSN 5998-01-453-6787
NSN 5996-00-204-6364