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 5910-01-500-5346
NSN 5895-01-599-8439
NSN 5920-01-314-8103
NSN 5930-01-605-3267
NSN 5945-01-094-6343
NSN 6145-00-548-2997
NSN 5920-01-359-8720
NSN 5915-00-705-2933
NSN 6240-00-800-4668
NSN 7035-01-352-6235
NSN 6130-00-234-5858
NSN 6320-01-547-9877