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 6320-01-407-4411
NSN 5965-01-221-0569
NSN 5965-01-270-1039
NSN 6220-00-312-2007
NSN 6320-00-164-4087
NSN 6110-01-411-6619
NSN 6620-01-400-2928
NSN 6145-00-419-9943
NSN 5835-01-469-6009
NSN 6150-00-353-5983
NSN 7035-01-068-3300
NSN 6685-00-140-5237