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 5915-00-304-8195
NSN 6620-01-401-5356
NSN 5835-01-504-0837
NSN 5895-01-436-5223
NSN 6240-00-255-2159
NSN 6135-01-349-6285
NSN 5935-01-315-1473
NSN 6220-00-827-0227
NSN 5996-01-024-2930
NSN 6130-01-476-6865
NSN 5950-01-067-4301
NSN 4140-01-611-9973