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 5835-01-259-0859
NSN 6150-01-626-1691
NSN 6145-00-398-4405
NSN 6110-01-475-4058
NSN 6650-00-420-2640
NSN 6150-01-054-3983
NSN 6620-01-272-4746
NSN 6220-01-340-7748
NSN 6650-00-854-0265
NSN 5905-01-461-5932
NSN 6650-01-234-6599
NSN 2925-01-151-6969