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 5960-01-573-6483
NSN 6620-00-079-0311
NSN 6105-01-014-6104
NSN 5930-01-486-1938
NSN 5905-01-421-4863
NSN 5999-01-260-1896
NSN 7035-01-596-5381
NSN 5975-00-998-3007
NSN 6685-00-910-8898
NSN 6610-01-229-3679
NSN 6150-01-288-2920
NSN 6645-00-466-0685