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: Copper washers including spring washers not threaded
NSN 6240-00-617-1719
NSN 6135-01-260-7180
NSN 5996-00-082-4081
NSN 5960-01-446-1266
NSN 6645-00-359-5463
NSN 5996-01-527-9707
NSN 6220-00-448-3522
NSN 5935-01-449-8173
NSN 5915-01-597-3926
NSN 6685-01-556-3449
NSN 6135-00-134-6648
NSN 5945-01-428-7099