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 5835-01-238-3381
NSN 5990-01-419-0661
NSN 5925-01-463-0305
NSN 5965-01-161-8097
NSN 6320-00-394-7903
NSN 6610-01-153-8625
NSN 5945-01-478-6903
NSN 5915-00-255-3674
NSN 5915-01-210-4274
NSN 6145-00-022-0818
NSN 5925-01-484-1353
NSN 5996-01-035-2042