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 6105-01-643-2555
NSN 5999-00-445-4725
NSN 6610-01-643-2315
NSN 6150-00-778-3289
NSN 5996-01-113-7960
NSN 4140-00-619-1534
NSN 4140-01-510-9380
NSN 4140-01-505-3914
NSN 5990-01-541-5632
NSN 5925-00-813-5964
NSN 6145-01-471-1823
NSN 5855-01-339-1718