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 5910-00-948-7538
NSN 6240-00-155-3447
NSN 5990-01-097-4721
NSN 6645-01-536-6111
NSN 5950-01-190-0164
NSN 5985-00-189-7138
NSN 6150-00-035-4573
NSN 6240-01-461-3129
NSN 5905-00-762-0626
NSN 5915-01-419-2843
NSN 5835-01-102-4451
NSN 4140-00-112-0630