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 5990-01-421-3325
NSN 5920-00-455-9743
NSN 2925-01-164-9579
NSN 5855-01-559-9639
NSN 5925-01-119-7888
NSN 5930-01-585-8470
NSN 5920-01-379-1941
NSN 2925-01-486-9731
NSN 5915-01-415-4649
NSN 5930-00-139-2789
NSN 5990-01-114-5095
NSN 5990-00-455-9865