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 5945-01-512-6633
NSN 7035-01-556-2554
NSN 6220-00-181-4643
NSN 5930-00-376-9991
NSN 5835-01-214-5402
NSN 2925-01-510-9378
NSN 5999-00-548-2060
NSN 5945-00-528-1920
NSN 5999-01-045-3340
NSN 5965-00-463-3929
NSN 5855-01-614-8408
NSN 5996-01-109-1586