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 6620-01-232-0680
NSN 6145-00-010-5135
NSN 6240-01-304-6355
NSN 5915-01-421-6044
NSN 6645-01-286-9872
NSN 6320-01-536-3077
NSN 5975-00-075-5191
NSN 5996-01-222-0790
NSN 5855-00-149-0766
NSN 5835-00-368-4182
NSN 5975-00-636-4910
NSN 6130-01-459-5059