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 6320-00-937-5625
NSN 6110-01-502-1755
NSN 5996-01-307-9903
NSN 5999-01-382-6462
NSN 5945-01-065-5285
NSN 5950-01-483-1075
NSN 6650-01-623-0129
NSN 5960-01-420-1251
NSN 6105-01-028-9646
NSN 6685-01-381-0759
NSN 5996-01-633-7979
NSN 5930-00-962-7514