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 6620-00-266-2763
NSN 6645-01-219-5911
NSN 5895-01-518-2296
NSN 6620-00-273-8735
NSN 5950-01-137-0072
NSN 6650-01-533-6640
NSN 6145-01-057-0962
NSN 7035-01-398-3494
NSN 6620-01-106-3553
NSN 5835-00-034-4976
NSN 6650-00-492-6072
NSN 2925-01-063-7876