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 5975-00-843-8226
NSN 5985-00-269-5388
NSN 6110-00-523-6887
NSN 5998-01-280-3642
NSN 6240-00-044-8836
NSN 5895-01-322-9996
NSN 5895-01-470-9519
NSN 5930-01-498-8025
NSN 5920-01-176-0024
NSN 5960-00-284-9818
NSN 6685-00-724-5998
NSN 5990-00-965-0495