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 5998-01-542-8649
NSN 5998-01-069-4534
NSN 6650-01-327-5113
NSN 6320-01-415-0953
NSN 5925-01-142-1996
NSN 5855-01-147-6024
NSN 6110-00-294-3631
NSN 5835-00-931-5568
NSN 5965-00-204-8513
NSN 5895-01-260-9947
NSN 6620-00-815-2281
NSN 7035-01-617-6637