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 7035-01-364-0286
NSN 6105-01-221-4438
NSN 5855-01-437-6161
NSN 5935-01-613-9790
NSN 5895-00-816-9763
NSN 6135-01-195-5343
NSN 6150-01-100-1673
NSN 5998-01-320-9487
NSN 6135-01-355-8917
NSN 6145-00-689-4215
NSN 5910-01-126-6719
NSN 6105-00-999-7272