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 5835-00-623-4046
NSN 6105-00-900-4143
NSN 5996-01-010-8609
NSN 5975-01-427-3521
NSN 5930-00-500-7617
NSN 5998-01-420-4472
NSN 6645-01-113-8979
NSN 6610-01-032-5335
NSN 6105-00-078-8951
NSN 5855-01-634-0259
NSN 5920-01-047-4682
NSN 6220-01-265-1077