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 5910-00-819-7652
NSN 5998-01-428-7524
NSN 6650-01-092-2451
NSN 6110-00-577-8156
NSN 5998-01-590-6971
NSN 5855-01-441-3189
NSN 6320-01-384-3850
NSN 5930-01-146-2548
NSN 5985-00-189-7138
NSN 5998-00-292-4954
NSN 5996-01-040-2606
NSN 5895-01-065-8704