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 5835-00-880-6477
NSN 6110-00-616-4300
NSN 5998-00-583-8617
NSN 7035-01-085-5955
NSN 6240-00-785-8398
NSN 5950-00-333-9739
NSN 7035-01-510-8787
NSN 5915-01-649-4912
NSN 6685-00-416-8893
NSN 6685-01-020-7235
NSN 5960-00-161-3728
NSN 6110-00-699-1495