A trunicated cone-shaped metal item generally tapered along its entire peripheral length, with a centrally located hole. It may be split (cut) through the material parallel to the axis.
NSN 5925-00-165-0371
NSN 6645-00-296-8310
NSN 5930-01-102-5340
NSN 6650-01-341-9838
NSN 2925-01-455-2558
NSN 5895-01-363-8728
NSN 5835-01-621-0750
NSN 6110-01-026-1236
NSN 6620-01-452-1161
NSN 5999-01-374-3837
NSN 5998-00-488-3705
NSN 6110-00-334-3361