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 6150-01-298-7710
NSN 5920-00-259-7294
NSN 6105-01-398-0814
NSN 6110-00-690-3390
NSN 5915-01-129-7507
NSN 5915-01-021-8096
NSN 4140-01-169-6237
NSN 6240-00-467-7295
NSN 6110-01-289-4689
NSN 6135-00-276-7625
NSN 5990-01-174-6851
NSN 5920-01-280-9147