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 5895-01-406-4974
NSN 5910-01-568-4483
NSN 5905-01-048-7890
NSN 6645-01-254-7980
NSN 5996-01-167-3922
NSN 6145-01-459-0962
NSN 5905-01-629-9382
NSN 5999-01-090-0664
NSN 5965-01-535-0718
NSN 5910-01-167-8041
NSN 5835-01-313-3375
NSN 6110-01-125-9723