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 5935-01-504-0834
NSN 6105-01-512-5506
NSN 6685-01-142-7380
NSN 5895-01-654-5979
NSN 5998-01-300-4293
NSN 5905-01-616-4358
NSN 6650-00-929-3946
NSN 7035-00-361-5975
NSN 6145-01-609-5743
NSN 6240-01-208-6229
NSN 5905-01-227-1783
NSN 5855-01-287-6391