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 5925-00-677-1937
NSN 6220-01-463-8673
NSN 6650-00-559-1462
NSN 5975-00-119-3977
NSN 5996-01-433-9067
NSN 6620-00-102-3950
NSN 5895-00-872-6070
NSN 5910-00-808-9349
NSN 5935-01-183-6766
NSN 6110-01-181-9253
NSN 5930-01-571-8762
NSN 6145-00-070-2385