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 6620-01-513-9674
NSN 2925-01-329-3665
NSN 6620-00-959-6614
NSN 6110-00-945-4720
NSN 6150-01-288-2598
NSN 5855-01-505-9158
NSN 6620-01-394-4042
NSN 5910-01-178-0875
NSN 5999-01-215-1236
NSN 6650-00-009-9510
NSN 6150-01-449-8714
NSN 5985-00-614-0558