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 5920-01-567-4634
NSN 6320-00-456-2092
NSN 5915-01-269-7972
NSN 7035-00-142-9076
NSN 5895-01-563-6973
NSN 5920-01-306-1399
NSN 5915-01-182-2520
NSN 5895-01-388-8436
NSN 6220-01-465-9283
NSN 5930-01-276-1301
NSN 5930-01-346-0595
NSN 5915-00-894-3825