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 5925-01-454-4419
NSN 5950-01-492-9908
NSN 5905-01-197-1803
NSN 5920-00-606-1242
NSN 5965-01-466-1154
NSN 6610-01-503-5656
NSN 5998-01-219-0114
NSN 5990-00-825-0273
NSN 4140-01-012-3996
NSN 5905-01-442-8338
NSN 6240-01-330-6805
NSN 6320-00-456-2092