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 6105-00-905-3135
NSN 5925-00-845-0886
NSN 5999-01-220-5502
NSN 6150-01-320-9047
NSN 5855-00-962-5792
NSN 5985-01-158-5645
NSN 5985-01-314-3490
NSN 6130-00-015-4111
NSN 6150-01-177-1295
NSN 5945-00-399-0716
NSN 6110-01-116-0073
NSN 5965-01-299-7294