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 6610-01-421-4044
NSN 6610-00-465-7461
NSN 5998-00-800-2837
NSN 5895-01-593-7313
NSN 5965-00-133-3031
NSN 5835-01-647-6426
NSN 5835-01-394-3812
NSN 6145-00-448-8264
NSN 5950-01-605-1386
NSN 5965-01-113-7400
NSN 5910-00-060-9999
NSN 5835-01-632-6627