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 5950-00-474-1387
NSN 5855-01-230-4665
NSN 6105-00-706-9468
NSN 6645-01-370-4259
NSN 5985-00-587-0807
NSN 6685-00-227-6750
NSN 5935-00-527-3826
NSN 6110-01-310-7186
NSN 5855-01-564-0112
NSN 5925-00-479-8233
NSN 6220-01-414-1906
NSN 5935-01-359-0891