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 6110-01-566-1684
NSN 5996-00-407-4661
NSN 6105-01-256-2588
NSN 6150-00-102-7881
NSN 5965-01-504-8199
NSN 5935-01-054-0866
NSN 6135-01-466-1153
NSN 7035-00-803-3056
NSN 6240-00-928-7181
NSN 6105-01-502-0824
NSN 6240-01-349-2790
NSN 6685-01-586-8392