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 5930-00-147-0953
NSN 5985-01-327-3017
NSN 6610-01-083-1446
NSN 5930-00-155-5917
NSN 6320-01-429-9871
NSN 6320-00-242-3300
NSN 5855-01-088-8700
NSN 5945-00-495-5681
NSN 5855-00-548-4742
NSN 6220-01-157-2712
NSN 5985-01-306-7564
NSN 6240-01-122-3649