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 5996-01-110-4573
NSN 5996-01-182-1125
NSN 5985-00-096-5510
NSN 5905-01-328-9003
NSN 6220-00-279-8819
NSN 5985-01-412-0569
NSN 6110-01-469-7944
NSN 5910-01-017-8011
NSN 6150-01-425-8436
NSN 6220-00-446-2882
NSN 6220-01-204-8916
NSN 6320-01-246-4390