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 5998-00-952-4994
NSN 5950-00-542-3995
NSN 6130-01-285-4486
NSN 6130-00-056-9372
NSN 6240-01-329-8095
NSN 4140-01-492-5268
NSN 5950-01-584-9703
NSN 5835-01-540-4995
NSN 6610-01-038-9277
NSN 5835-01-291-5405
NSN 5925-01-384-2580
NSN 5895-01-122-0066