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 5920-01-519-2691
NSN 6620-00-583-2687
NSN 5915-00-081-0536
NSN 5895-01-324-9908
NSN 6320-01-436-9228
NSN 7035-01-325-7658
NSN 6645-00-079-1430
NSN 5985-01-171-5001
NSN 5960-01-522-0391
NSN 6610-00-726-9421
NSN 6645-00-100-4664
NSN 6145-01-230-3595