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 5996-00-316-5115
NSN 5990-01-206-3606
NSN 5910-00-288-5979
NSN 5998-01-490-4569
NSN 6685-00-419-0643
NSN 6135-00-927-5848
NSN 6105-01-303-5856
NSN 7035-01-602-3709
NSN 5950-00-755-9638
NSN 6130-01-029-3601
NSN 2925-01-527-8745
NSN 5990-01-113-7238