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 6105-00-910-4499
NSN 6240-00-191-2855
NSN 6145-01-262-4249
NSN 6220-00-887-0588
NSN 6610-00-924-8814
NSN 6150-01-362-0526
NSN 5999-00-711-6934
NSN 5855-01-136-1916
NSN 2925-01-043-9786
NSN 5855-01-243-2355
NSN 5996-01-125-3334
NSN 7035-01-297-9806