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 5960-00-215-3754
NSN 6645-01-505-5772
NSN 5855-01-253-6076
NSN 5855-01-098-9038
NSN 5985-01-150-3660
NSN 5920-01-634-0250
NSN 2925-01-170-1089
NSN 5965-01-039-1430
NSN 5935-01-121-4310
NSN 6240-01-653-3221
NSN 6220-01-358-3533
NSN 6130-01-660-5109