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 5996-01-082-0808
NSN 7035-01-322-8180
NSN 6220-01-562-3819
NSN 5835-01-616-6131
NSN 5975-01-473-9564
NSN 6110-01-579-3764
NSN 5895-01-576-9861
NSN 5999-01-431-8878
NSN 5975-01-188-7460
NSN 6105-01-381-2012
NSN 5895-01-349-5404
NSN 5960-00-315-0358