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 5965-01-322-8136
NSN 5996-01-046-6351
NSN 6240-00-045-9844
NSN 6145-00-152-9954
NSN 5905-00-683-3888
NSN 6130-01-634-0603
NSN 4140-01-659-2515
NSN 6650-00-620-0212
NSN 6240-00-062-7078
NSN 5935-01-248-9432
NSN 5915-01-089-1629
NSN 6110-01-110-1337