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 5835-01-647-6426
NSN 6620-01-411-9489
NSN 5855-01-130-1501
NSN 6620-01-196-3448
NSN 6620-00-121-9702
NSN 5960-01-487-6436
NSN 5945-00-526-0017
NSN 5930-00-985-4780
NSN 5998-00-009-9787
NSN 6620-00-278-7313
NSN 6150-01-256-7645
NSN 6610-00-442-1537