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 5985-01-363-5064
NSN 5985-01-205-7424
NSN 5950-01-177-6746
NSN 6240-01-479-2840
NSN 5965-00-134-0883
NSN 6105-00-664-1292
NSN 5915-01-633-9845
NSN 5950-00-116-6447
NSN 5996-01-108-4306
NSN 5945-00-365-9866
NSN 4140-00-952-4047
NSN 5905-01-543-5676