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 5915-01-421-1818
NSN 5990-00-972-1404
NSN 6130-01-471-5673
NSN 6135-01-127-0173
NSN 5996-01-367-2081
NSN 5835-01-614-1900
NSN 5910-01-032-5099
NSN 5960-00-263-0106
NSN 6130-01-147-3932
NSN 5975-01-445-3869
NSN 6650-01-459-8575
NSN 5915-01-038-6529