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 5945-00-197-7673
NSN 6150-00-259-4632
NSN 5930-00-834-3370
NSN 6110-00-008-8000
NSN 6610-00-809-0978
NSN 4140-00-740-0357
NSN 2925-01-146-0278
NSN 5975-01-070-2713
NSN 5835-01-329-4814
NSN 6650-01-472-8804
NSN 6130-01-487-8699
NSN 6145-01-116-1274