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 6135-00-209-6918
NSN 6650-01-298-4138
NSN 5965-01-118-0017
NSN 5835-01-093-3211
NSN 5915-01-509-0639
NSN 6135-01-052-9634
NSN 2925-01-448-2880
NSN 6620-00-571-8157
NSN 5996-00-061-0336
NSN 5835-01-296-8146
NSN 5835-01-332-2867
NSN 6320-00-564-2772