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 5965-01-444-1322
NSN 6220-01-167-5436
NSN 5975-00-624-6949
NSN 6105-01-583-9027
NSN 6610-00-388-9188
NSN 7035-01-157-0028
NSN 6110-01-498-9223
NSN 5920-00-483-1597
NSN 6240-01-617-9769
NSN 5920-01-096-1864
NSN 6645-01-324-8185
NSN 5935-01-388-3242