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 5985-01-167-5462
NSN 6320-00-228-5678
NSN 5935-00-420-1188
NSN 2925-01-226-6126
NSN 5960-01-485-2467
NSN 6685-00-449-7087
NSN 5925-00-089-5596
NSN 5925-01-495-5305
NSN 6150-01-009-8730
NSN 5965-01-321-2907
NSN 6320-01-578-6006
NSN 5915-00-338-8610