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 5910-01-188-6858
NSN 7035-00-803-3056
NSN 5950-01-384-3834
NSN 6620-00-580-3499
NSN 5930-00-595-5489
NSN 6645-01-140-8204
NSN 5920-01-177-9200
NSN 6650-01-650-5771
NSN 5965-01-178-2367
NSN 6240-01-022-3917
NSN 5930-01-017-2232
NSN 6610-01-434-4958