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 5996-01-628-8624
NSN 7035-01-139-5707
NSN 5910-00-783-5372
NSN 5915-01-645-4809
NSN 7035-00-849-5526
NSN 6620-01-030-9460
NSN 6610-01-433-2219
NSN 5835-00-841-2650
NSN 5996-01-592-8104
NSN 5935-01-462-0362
NSN 6105-01-528-7514
NSN 6650-01-331-5243