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 5999-01-371-3169
NSN 5996-01-027-7948
NSN 5985-01-357-7200
NSN 5935-01-264-0670
NSN 5975-00-734-4606
NSN 5920-01-257-6643
NSN 5925-00-192-4363
NSN 6620-01-552-2889
NSN 5895-00-327-4911
NSN 6620-01-197-7665
NSN 5930-01-392-1222
NSN 6105-00-027-9061