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 6685-01-018-5319
NSN 6645-00-399-4551
NSN 6240-01-543-7055
NSN 5920-00-549-2203
NSN 5985-01-605-4821
NSN 5945-00-872-7165
NSN 5996-00-150-2289
NSN 6320-01-195-5583
NSN 6105-00-226-2185
NSN 5835-00-165-3069
NSN 5960-00-140-9583
NSN 5855-00-189-6066