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 5835-01-656-2940
NSN 6610-00-686-1557
NSN 5950-00-772-0521
NSN 5920-01-320-7888
NSN 5935-01-287-4406
NSN 5915-00-872-5199
NSN 6645-01-150-2039
NSN 6320-00-823-2015
NSN 6110-00-105-9850
NSN 5998-01-140-2197
NSN 6220-01-621-3473
NSN 5935-01-115-3506