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 5930-01-569-8048
NSN 6240-01-430-4252
NSN 5998-01-604-9606
NSN 5895-01-530-3619
NSN 5960-01-449-1310
NSN 6650-01-025-7425
NSN 5835-01-460-6054
NSN 5895-01-503-5131
NSN 5895-01-041-5874
NSN 5920-00-276-8657
NSN 6645-01-262-0685
NSN 5998-00-513-0246