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 5965-01-490-2547
NSN 5925-00-893-6625
NSN 7035-01-058-8728
NSN 4140-01-510-9666
NSN 6110-01-296-7349
NSN 5975-01-568-3147
NSN 5996-01-601-5949
NSN 5999-00-666-3838
NSN 6620-01-361-8685
NSN 6320-00-857-4073
NSN 6320-00-004-9158
NSN 6150-00-631-6641