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 5998-00-320-0782
NSN 5998-00-790-4082
NSN 6610-00-466-3104
NSN 5998-01-447-9065
NSN 6610-01-376-9199
NSN 5905-01-391-7497
NSN 5960-00-647-9159
NSN 6240-00-209-1883
NSN 7035-01-568-5351
NSN 6220-01-226-1776
NSN 7035-00-361-5975
NSN 5915-00-728-3245