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 5975-01-420-7310
NSN 4140-00-107-5284
NSN 6220-01-007-9988
NSN 6645-01-230-8025
NSN 6620-01-152-9453
NSN 6610-01-462-9439
NSN 6645-00-099-6913
NSN 5960-00-551-2633
NSN 6145-01-254-2935
NSN 6320-01-416-9357
NSN 6145-01-364-3725
NSN 5999-00-070-5884