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 6685-00-727-1390
NSN 5996-01-242-9710
NSN 5975-00-612-1998
NSN 6105-00-208-1803
NSN 5990-01-605-4769
NSN 5996-01-400-3558
NSN 6320-01-543-3238
NSN 6130-01-492-5841
NSN 6645-01-613-7389
NSN 5895-01-263-2103
NSN 5920-00-492-5516
NSN 6105-01-063-4911