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 5835-00-958-6231
NSN 5930-01-163-7282
NSN 5935-00-630-3097
NSN 5925-01-604-9427
NSN 6220-00-617-9616
NSN 5920-01-548-7960
NSN 6105-00-009-4318
NSN 6145-01-451-4304
NSN 6645-00-816-5337
NSN 6685-01-518-2448
NSN 5950-01-566-5449
NSN 6610-01-381-0652