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 4140-01-225-2221
NSN 5895-00-553-8345
NSN 5905-01-304-1894
NSN 6650-00-205-6282
NSN 5925-00-069-3015
NSN 5895-01-539-0420
NSN 5925-00-658-9609
NSN 5975-01-534-6643
NSN 6650-01-642-5803
NSN 5905-01-652-5563
NSN 6650-01-620-7649
NSN 6145-01-591-9099