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 5920-01-417-3038
NSN 6650-00-548-9797
NSN 5905-00-661-2395
NSN 6135-01-282-4326
NSN 5895-01-621-6673
NSN 6645-00-183-8812
NSN 6610-01-347-6781
NSN 5985-01-409-2865
NSN 6645-01-076-9310
NSN 6130-01-023-8031
NSN 5905-00-222-4322
NSN 5835-00-092-1136