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 6135-00-628-1142
NSN 6145-01-252-7675
NSN 6685-01-032-3384
NSN 5855-01-454-1538
NSN 6610-01-612-0157
NSN 6105-01-418-1877
NSN 5945-00-622-4804
NSN 7035-00-997-6212
NSN 6685-01-654-4653
NSN 6650-01-090-0719
NSN 5996-00-534-6049
NSN 6145-01-247-3730