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 5975-01-179-4668
NSN 6130-00-371-5994
NSN 5996-01-052-4027
NSN 6610-01-033-7957
NSN 5945-01-426-2311
NSN 7035-00-349-8571
NSN 6610-01-575-4348
NSN 6145-01-060-3485
NSN 6650-01-285-4546
NSN 5998-01-291-5022
NSN 6105-00-142-5901
NSN 5895-01-499-5846