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: Washers other than lock washers, iron or steel
NSN 6650-01-186-5762
NSN 6130-00-331-6836
NSN 5990-00-872-9370
NSN 5935-01-421-2456
NSN 2925-00-465-6354
NSN 5855-01-175-2465
NSN 6135-01-365-2707
NSN 6610-01-192-6478
NSN 5835-01-259-0859
NSN 6220-00-401-0704
NSN 5895-00-623-0255
NSN 6620-01-408-4464