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 6645-01-558-9016
NSN 7035-01-106-3476
NSN 6130-01-639-8149
NSN 5996-00-624-7292
NSN 5996-00-656-4459
NSN 6650-01-193-8983
NSN 6645-01-381-0656
NSN 5996-01-398-3516
NSN 5910-00-781-9033
NSN 5999-01-142-6168
NSN 6240-00-974-3556
NSN 5920-00-968-6370