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 5998-01-535-7135
NSN 5920-01-599-4432
NSN 7035-01-388-6943
NSN 6150-01-081-8698
NSN 6150-00-104-4572
NSN 6645-00-211-6906
NSN 5925-00-892-1115
NSN 5996-00-441-6996
NSN 6650-01-629-0096
NSN 5920-00-524-2291
NSN 5930-00-293-8197
NSN 5905-00-020-6664