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 5998-01-605-3886
NSN 5915-01-654-4812
NSN 5999-01-067-8368
NSN 5998-00-252-7305
NSN 5999-01-257-2076
NSN 5950-00-545-5933
NSN 5960-01-189-1644
NSN 6110-01-465-2067
NSN 5965-01-454-8076
NSN 5930-00-584-3487
NSN 6150-00-647-3285
NSN 5910-01-396-9443