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 5965-01-417-3211
NSN 6130-01-634-0603
NSN 6620-00-246-5159
NSN 7035-00-142-9076
NSN 5835-01-022-6362
NSN 5990-01-235-8404
NSN 6320-01-144-3810
NSN 5920-01-415-2178
NSN 6135-01-364-0667
NSN 5905-01-079-9310
NSN 5996-00-923-2388
NSN 5835-01-055-2327