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 5999-00-778-6340
NSN 5960-01-155-1962
NSN 6320-01-067-0474
NSN 6105-01-306-7423
NSN 5915-01-366-3964
NSN 5950-00-936-3927
NSN 5999-01-559-4502
NSN 5996-01-012-1924
NSN 5945-01-530-4674
NSN 5965-00-594-3115
NSN 6145-01-602-7739
NSN 4140-01-577-8007