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 5910-00-188-4647
NSN 5835-00-106-2120
NSN 5985-01-054-5526
NSN 6220-01-609-6042
NSN 6220-01-508-5053
NSN 5965-00-847-2865
NSN 5910-01-358-0161
NSN 6240-00-166-2271
NSN 5990-01-376-4376
NSN 6320-01-574-1915
NSN 5975-01-211-6594
NSN 5910-01-383-0307