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: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 5960-00-486-0323
NSN 5999-00-370-0797
NSN 6620-00-421-0465
NSN 5950-01-042-3789
NSN 6110-00-802-9557
NSN 5930-00-722-8032
NSN 6610-01-118-7577
NSN 6220-00-851-2307
NSN 5965-00-434-7617
NSN 6240-01-353-7758
NSN 5935-01-030-3060
NSN 6150-01-385-9298