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 6145-00-756-2985
NSN 6150-00-952-2766
NSN 6135-00-938-1351
NSN 6150-00-198-1074
NSN 6130-01-226-2435
NSN 5920-00-378-1395
NSN 6645-00-815-5448
NSN 5990-01-516-9665
NSN 5985-01-336-9521
NSN 5985-00-513-0527
NSN 5999-00-666-3838
NSN 6240-01-331-2244