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 6135-01-317-6021
NSN 5895-01-266-3585
NSN 6320-00-925-0558
NSN 5960-01-425-1454
NSN 4140-01-145-4474
NSN 6220-01-539-2261
NSN 6320-01-513-9166
NSN 5855-01-169-9228
NSN 5910-01-119-5050
NSN 5960-01-474-4843
NSN 5960-00-453-5281
NSN 6685-00-634-9233