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 5999-01-275-6663
NSN 6685-01-213-3183
NSN 5925-01-441-9316
NSN 5915-01-282-7848
NSN 6150-00-695-2765
NSN 5945-01-358-6525
NSN 5855-00-532-0025
NSN 5930-00-650-8791
NSN 6610-01-269-5437
NSN 6135-00-299-6918
NSN 5999-00-149-0624
NSN 5915-01-556-2462