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 5999-01-274-5257
NSN 5835-00-450-8347
NSN 6220-00-819-7028
NSN 5999-01-009-0147
NSN 4140-00-789-6935
NSN 5895-00-826-8652
NSN 6620-01-074-2722
NSN 2925-01-039-6856
NSN 5925-01-396-2999
NSN 6110-01-278-9229
NSN 5960-00-452-6043
NSN 5930-01-004-8339