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 6650-01-462-0830
NSN 5996-01-246-0078
NSN 5999-01-204-6416
NSN 5950-00-269-3841
NSN 5960-01-533-5162
NSN 5855-00-327-2112
NSN 5915-01-196-4787
NSN 6650-01-027-1181
NSN 5965-00-191-6788
NSN 5935-01-514-2477
NSN 6685-00-880-1900
NSN 5965-00-874-7795