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 5985-00-434-5771
NSN 5960-00-811-1258
NSN 6145-01-050-7531
NSN 6620-00-854-5024
NSN 5925-01-472-3382
NSN 6610-01-598-6052
NSN 6240-00-193-5082
NSN 5990-00-173-9401
NSN 6130-00-274-8411
NSN 5930-00-997-2557
NSN 7035-00-834-2090
NSN 6650-01-074-8232