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 5960-01-512-0233
NSN 5905-01-528-7879
NSN 6110-01-353-4920
NSN 5996-00-772-3850
NSN 6650-01-267-4925
NSN 4140-01-005-0154
NSN 6610-01-137-2767
NSN 6240-01-481-1796
NSN 4140-00-410-2581
NSN 6240-01-515-4680
NSN 6320-00-164-4087
NSN 5835-00-606-7042