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 6320-00-098-2858
NSN 6130-00-009-6193
NSN 5855-01-630-6578
NSN 5855-01-422-5413
NSN 2925-01-014-0118
NSN 4140-01-561-6883
NSN 5925-01-529-8157
NSN 4140-01-045-1753
NSN 6105-01-358-3466
NSN 5920-01-168-7810
NSN 5998-01-183-0403
NSN 5935-01-511-4491