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 5835-01-519-3834
NSN 4140-01-024-9414
NSN 6610-00-972-5891
NSN 5990-00-419-0236
NSN 6110-01-216-1203
NSN 6240-01-497-3085
NSN 6620-00-080-2847
NSN 6145-00-224-1721
NSN 5945-01-013-2794
NSN 5999-01-068-1182
NSN 5855-00-149-0766
NSN 5945-00-021-2048