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 6685-00-452-6120
NSN 6145-00-016-8768
NSN 5855-01-462-5150
NSN 5990-00-809-0088
NSN 6320-00-908-6841
NSN 2925-01-467-7672
NSN 5835-01-202-1376
NSN 6645-00-903-1696
NSN 4140-00-118-1816
NSN 5855-01-070-8084
NSN 5930-01-474-4344
NSN 6130-00-813-7453