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 6220-01-606-2355
NSN 6320-01-450-5510
NSN 5998-01-628-6570
NSN 5998-01-512-1243
NSN 6150-01-508-1578
NSN 5998-01-096-2930
NSN 5950-00-225-8378
NSN 5915-01-250-1217
NSN 5930-00-753-2335
NSN 5950-01-243-5652
NSN 2925-00-054-3550
NSN 5999-01-440-6413