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 6320-00-459-8973
NSN 6130-00-100-0175
NSN 5998-01-495-5477
NSN 5965-00-984-1393
NSN 5945-01-260-8695
NSN 5855-01-333-7108
NSN 5990-00-850-0609
NSN 6220-01-474-5989
NSN 5990-01-311-7491
NSN 5925-01-480-6701
NSN 6110-01-580-6415
NSN 5965-01-555-5306