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: Washers other than lock washers, iron or steel
NSN 5999-01-374-0711
NSN 5996-01-421-4417
NSN 6150-00-505-3969
NSN 4140-01-281-4058
NSN 6650-00-103-0867
NSN 2925-01-434-6945
NSN 5930-00-159-7467
NSN 5835-01-113-8731
NSN 4140-01-599-0400
NSN 6650-01-449-5446
NSN 5945-01-634-0588
NSN 5925-01-581-4662