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 5945-01-364-0593
NSN 5915-00-075-7318
NSN 5895-00-146-1361
NSN 5905-00-078-9600
NSN 6645-00-518-2068
NSN 5998-01-011-6318
NSN 6145-01-431-1394
NSN 6650-00-554-1457
NSN 5930-00-140-6320
NSN 5920-01-484-9924
NSN 5999-00-707-8641
NSN 6110-00-268-2919