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 6240-01-139-3377
NSN 6105-01-279-7376
NSN 5935-00-176-0165
NSN 6105-01-130-4089
NSN 6105-01-546-6807
NSN 6620-00-846-3287
NSN 6220-00-417-3615
NSN 7035-01-633-9537
NSN 5925-00-710-1664
NSN 5930-01-023-4885
NSN 5965-01-656-3038
NSN 6650-01-200-7657