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 5975-01-519-8899
NSN 5920-00-350-6941
NSN 6150-01-284-7746
NSN 6130-00-581-2006
NSN 5905-01-174-1551
NSN 5985-01-354-1330
NSN 5985-01-321-5084
NSN 6320-01-659-2819
NSN 5910-01-106-3994
NSN 5990-01-386-5561
NSN 5950-01-075-9554
NSN 5905-00-263-3004