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 7035-01-086-8095
NSN 6220-01-025-8551
NSN 5998-01-307-6495
NSN 6220-01-478-0986
NSN 6650-01-579-5473
NSN 5960-01-553-4557
NSN 6145-01-155-4488
NSN 6110-01-068-3552
NSN 7035-00-497-8784
NSN 5920-00-607-3385
NSN 5935-01-255-3032
NSN 7035-01-421-4446