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 6150-01-400-4211
NSN 6240-01-511-1009
NSN 6320-01-250-0290
NSN 6110-01-435-5441
NSN 6220-00-248-5511
NSN 6240-01-141-5230
NSN 6685-01-460-9550
NSN 5950-00-142-0609
NSN 6135-00-891-4944
NSN 5920-00-763-8006
NSN 5999-01-071-2806
NSN 6620-00-193-9503