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 5930-01-459-7252
NSN 6685-01-519-9250
NSN 5905-01-619-4239
NSN 5985-01-614-1968
NSN 6130-01-308-3540
NSN 6645-01-040-0047
NSN 6220-00-237-7284
NSN 5835-01-160-7282
NSN 6135-01-384-4395
NSN 5965-01-423-8543
NSN 5985-00-815-0258
NSN 6650-01-114-6019