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 6320-00-371-8335
NSN 5855-01-456-0813
NSN 6105-01-474-3826
NSN 5905-01-039-1145
NSN 6110-00-271-9928
NSN 5960-01-270-3938
NSN 6150-00-636-8938
NSN 5945-01-308-2061
NSN 5998-00-078-0513
NSN 6610-01-311-1760
NSN 5855-01-379-3160
NSN 4140-01-035-5530