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 5950-01-481-7568
NSN 5835-00-378-1429
NSN 6105-01-460-4280
NSN 5950-01-547-1863
NSN 5855-01-078-4180
NSN 5910-00-658-3409
NSN 5935-01-265-1111
NSN 5985-00-808-7122
NSN 6620-00-999-2425
NSN 6135-00-248-4102
NSN 6110-00-391-4939
NSN 6220-00-722-4497