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 5905-00-760-1481
NSN 5985-01-052-1273
NSN 5925-00-026-1977
NSN 5960-00-059-0216
NSN 5925-00-168-8626
NSN 2925-00-780-5502
NSN 6610-00-096-1682
NSN 7035-01-162-5230
NSN 6110-00-050-4964
NSN 5990-00-079-0932
NSN 5985-00-021-8836
NSN 5960-01-412-0619