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 5915-01-487-6454
NSN 6220-01-492-2563
NSN 6150-00-148-3909
NSN 5835-00-683-4612
NSN 5950-01-644-5010
NSN 5925-00-137-6582
NSN 5960-01-138-5897
NSN 5915-01-044-4480
NSN 6145-00-602-2759
NSN 6110-01-060-8115
NSN 5935-00-431-4129
NSN 6240-01-504-4287