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 5935-01-254-0909
NSN 7035-01-591-7197
NSN 7035-01-069-3537
NSN 5998-01-592-8704
NSN 4140-01-085-7810
NSN 7035-01-344-8708
NSN 5855-01-519-4991
NSN 5985-00-952-5711
NSN 5925-01-645-4909
NSN 5945-01-313-2208
NSN 6105-01-481-1840
NSN 5855-01-579-9859