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 5895-01-614-6143
NSN 5960-01-237-5965
NSN 5996-00-209-9517
NSN 6105-01-642-4435
NSN 5999-01-226-5310
NSN 5998-01-305-4866
NSN 5920-00-736-0796
NSN 6610-01-357-5957
NSN 6145-00-442-3326
NSN 6240-00-141-6143
NSN 5935-01-381-1774
NSN 6105-01-616-1879