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 4140-01-008-2026
NSN 6610-00-398-0104
NSN 5910-01-562-3887
NSN 6320-00-831-2227
NSN 5975-00-260-1336
NSN 4140-01-509-8305
NSN 7035-00-523-7492
NSN 6320-00-456-2092
NSN 6240-01-326-0286
NSN 5835-00-864-4481
NSN 6110-01-525-1883
NSN 5920-01-544-0357