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 5998-01-052-3913
NSN 6150-01-649-7924
NSN 5965-01-511-8504
NSN 4140-01-436-1878
NSN 5985-00-224-5249
NSN 6150-01-265-1142
NSN 5855-00-797-8217
NSN 5930-01-603-3572
NSN 6650-00-172-7519
NSN 6145-00-050-1484
NSN 5910-01-200-7944
NSN 5935-01-135-8148