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 6645-00-755-9782
NSN 6130-01-316-0038
NSN 5950-00-456-0665
NSN 6145-00-834-2676
NSN 5990-01-087-7081
NSN 4140-00-181-9504
NSN 5999-00-678-8634
NSN 5996-01-197-7005
NSN 5935-00-573-1292
NSN 6105-00-988-2471
NSN 5925-00-460-1729
NSN 6135-01-469-7574