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 5965-00-614-7280
NSN 4140-01-146-4474
NSN 5895-01-181-1289
NSN 6220-01-582-4282
NSN 5920-01-185-2222
NSN 6240-01-646-5509
NSN 5905-01-131-2161
NSN 5895-00-473-6056
NSN 5960-01-414-8918
NSN 5960-01-372-5609
NSN 5975-00-188-7764
NSN 5950-01-382-6989