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 5998-00-880-2154
NSN 5835-00-233-6327
NSN 5925-00-437-2854
NSN 2925-01-091-4734
NSN 5855-01-130-1501
NSN 5945-00-959-4528
NSN 5996-00-615-6083
NSN 6105-01-093-9893
NSN 6610-00-811-6072
NSN 6240-00-395-0019
NSN 6105-01-629-4302
NSN 5855-00-688-9954