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 6130-01-118-0784
NSN 7035-01-119-2234
NSN 5990-01-480-9938
NSN 6105-01-558-8908
NSN 6320-01-006-6138
NSN 7035-01-107-2811
NSN 6220-01-580-0604
NSN 5975-01-459-3945
NSN 6645-01-106-4981
NSN 5998-01-650-3588
NSN 6220-01-379-8533
NSN 6145-00-259-1622