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 5950-01-026-6775
NSN 6105-00-601-3072
NSN 6610-00-051-0989
NSN 5935-01-237-6823
NSN 5950-01-047-2964
NSN 5930-00-870-2946
NSN 5998-01-017-6874
NSN 6150-00-862-3247
NSN 5975-00-087-6640
NSN 5990-01-573-1634
NSN 6110-01-429-0170
NSN 6145-01-423-0906