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 5985-01-044-4530
NSN 6130-00-231-9443
NSN 2925-01-606-3201
NSN 6105-01-372-2979
NSN 6110-01-400-4207
NSN 5835-00-896-0063
NSN 6145-01-360-2789
NSN 6220-00-074-1965
NSN 6685-01-138-5344
NSN 5930-01-650-3057
NSN 6130-01-290-9426
NSN 6610-01-581-6338