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 6110-01-422-9861
NSN 5930-00-242-0180
NSN 6645-01-170-5402
NSN 6110-00-544-9521
NSN 5950-00-807-6284
NSN 5960-01-507-9112
NSN 5985-01-538-3342
NSN 6610-01-261-4487
NSN 5965-01-032-7236
NSN 4140-00-486-6292
NSN 6220-01-328-7523
NSN 6645-01-508-0345