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 5960-01-026-9005
NSN 5998-01-524-5714
NSN 5996-01-027-1729
NSN 5905-00-143-8498
NSN 6145-00-838-1811
NSN 7035-00-433-5670
NSN 5915-01-555-8081
NSN 5960-01-126-4506
NSN 6240-00-186-6611
NSN 5945-00-422-5611
NSN 5915-01-307-2036
NSN 5945-00-633-7620