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 5835-00-729-9305
NSN 5905-00-508-5658
NSN 5996-00-525-1777
NSN 6645-01-088-5244
NSN 6105-00-983-8440
NSN 5945-01-174-3457
NSN 6130-00-721-4156
NSN 2925-01-364-7926
NSN 2925-01-304-4567
NSN 6320-00-299-3090
NSN 5960-01-495-0859
NSN 6150-01-287-3198