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 6145-00-781-6998
NSN 6610-00-943-9503
NSN 2925-01-579-1010
NSN 5945-01-423-1009
NSN 5950-00-003-7996
NSN 5965-01-217-3859
NSN 5930-00-980-3738
NSN 6240-00-409-8301
NSN 5975-00-079-0022
NSN 6105-01-285-1887
NSN 5965-00-612-0072
NSN 5960-01-222-4199