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 7035-01-560-5652
NSN 5965-00-959-4910
NSN 6685-01-494-9095
NSN 6240-00-197-6819
NSN 5935-01-010-1096
NSN 5990-01-087-7081
NSN 5915-01-123-8292
NSN 5935-01-029-0155
NSN 6650-01-433-1911
NSN 6610-01-576-8955
NSN 6610-01-450-5688
NSN 5915-01-227-4573