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 6130-01-325-2539
NSN 5915-01-269-7972
NSN 6320-00-925-0558
NSN 7035-01-322-9239
NSN 4140-01-221-4050
NSN 5835-01-234-2906
NSN 5999-00-925-1115
NSN 5835-01-384-3206
NSN 6620-00-596-1951
NSN 6685-00-249-4170
NSN 5935-01-454-3832
NSN 5925-01-537-0409