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 6110-01-333-3596
NSN 5998-01-145-8700
NSN 5945-01-130-8056
NSN 5975-01-598-4717
NSN 5999-01-406-1859
NSN 5930-01-582-8367
NSN 5950-01-629-1954
NSN 5960-01-109-0768
NSN 5935-00-389-7160
NSN 5935-01-294-5021
NSN 5999-00-592-4740
NSN 5985-01-165-2741