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 5935-00-209-6774
NSN 6645-00-776-8234
NSN 6150-01-398-1138
NSN 5985-00-508-5020
NSN 5925-01-630-9832
NSN 5835-00-325-8206
NSN 5990-00-944-3568
NSN 6645-01-452-9495
NSN 6240-01-272-9019
NSN 6220-00-760-9199
NSN 5990-01-483-7313
NSN 5915-01-459-1329