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 7035-01-258-7661
NSN 6620-01-361-8685
NSN 4140-00-005-2093
NSN 6130-01-019-5791
NSN 5985-01-399-1094
NSN 5935-00-125-1051
NSN 5835-01-130-4952
NSN 5935-01-570-0752
NSN 6105-00-389-8675
NSN 5950-00-200-9872
NSN 6650-01-258-5871
NSN 7035-01-344-4192