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 5950-01-570-4438
NSN 6135-01-492-5717
NSN 6145-01-049-0130
NSN 5975-01-608-3696
NSN 5960-00-952-5652
NSN 6620-00-581-8984
NSN 6320-01-278-2359
NSN 5960-01-462-1864
NSN 6220-00-863-0134
NSN 6220-01-207-1229
NSN 7035-01-235-6023
NSN 5950-00-042-3155