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 5835-00-262-6146
NSN 6150-00-822-4396
NSN 2925-01-327-3069
NSN 5935-00-399-7288
NSN 5915-01-577-6708
NSN 5998-01-006-7633
NSN 6620-01-039-5468
NSN 6240-01-562-4193
NSN 6105-01-472-2452
NSN 5965-00-289-6280
NSN 5999-01-338-7366
NSN 5835-01-189-6095