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 5905-01-387-0164
NSN 5920-01-276-4806
NSN 5925-01-594-1873
NSN 5965-00-864-8046
NSN 6320-00-164-4087
NSN 5985-01-268-5878
NSN 6240-01-018-4895
NSN 6110-00-287-3235
NSN 5935-01-345-8195
NSN 5935-01-240-8187
NSN 5920-01-544-4673
NSN 5920-00-466-3950