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 5990-01-395-4194
NSN 6685-00-005-5392
NSN 7035-00-631-3782
NSN 5930-00-156-3386
NSN 5920-01-435-9530
NSN 5945-01-500-2140
NSN 5910-00-236-4802
NSN 5950-01-179-5368
NSN 5996-01-508-4599
NSN 6610-00-854-9166
NSN 6610-01-372-5196
NSN 6105-00-297-3762