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 5855-01-627-0837
NSN 5996-01-328-8706
NSN 5910-00-322-7966
NSN 5895-01-450-2303
NSN 5965-00-161-4578
NSN 6130-01-169-2277
NSN 5905-01-284-5692
NSN 6110-00-917-3805
NSN 6620-01-063-9054
NSN 7035-01-350-4247
NSN 5935-00-482-6057
NSN 6105-00-384-1693