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 6105-01-427-8439
NSN 6610-01-397-6965
NSN 6145-00-360-7760
NSN 6650-01-142-1688
NSN 6645-01-595-7659
NSN 5996-00-987-0934
NSN 5999-00-858-1945
NSN 5855-01-133-3587
NSN 7035-00-631-3782
NSN 7035-01-158-7673
NSN 6110-01-300-4575
NSN 6620-00-383-8740