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 5905-01-141-9982
NSN 4140-01-064-6474
NSN 5990-01-039-2016
NSN 5996-01-417-4246
NSN 6610-00-211-9095
NSN 6130-01-304-8411
NSN 5935-01-146-5434
NSN 5985-01-221-7882
NSN 2925-00-265-7539
NSN 5835-00-253-3453
NSN 5996-00-482-1170
NSN 6320-01-329-2297