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 5925-00-666-4753
NSN 5985-00-235-8523
NSN 6610-01-371-3006
NSN 5920-01-432-6620
NSN 5925-00-248-5734
NSN 5920-00-548-2223
NSN 6130-01-235-7033
NSN 6240-01-106-2447
NSN 5975-01-524-7903
NSN 6105-00-119-2212
NSN 5835-00-231-9544
NSN 6105-00-953-0470