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 6105-01-186-4287
NSN 6620-01-350-5103
NSN 5996-01-266-5973
NSN 5965-01-079-7939
NSN 5999-01-303-4906
NSN 6650-00-671-5106
NSN 5920-01-262-5094
NSN 5910-01-245-9354
NSN 6105-01-494-8401
NSN 6145-01-364-0346
NSN 5950-01-193-6677
NSN 2925-01-309-5007