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 6150-01-285-8949
NSN 7035-01-481-8247
NSN 6240-01-168-4533
NSN 5835-00-113-6090
NSN 6130-01-600-4423
NSN 6240-01-506-9294
NSN 5855-00-489-6754
NSN 5999-01-605-0657
NSN 5950-01-015-7785
NSN 5945-00-974-6237
NSN 2925-01-348-8306
NSN 5910-01-327-2591