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 6650-01-472-6753
NSN 5998-00-222-3599
NSN 6240-01-109-1823
NSN 6320-01-320-3305
NSN 5835-01-330-8597
NSN 5960-00-338-3577
NSN 6645-01-206-4888
NSN 5930-01-148-3960
NSN 5945-00-576-0158
NSN 5925-01-550-8457
NSN 6650-00-144-4555
NSN 5965-00-189-9394