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 2925-00-159-9003
NSN 5990-00-530-3855
NSN 6685-01-555-7938
NSN 6320-00-284-1524
NSN 5855-01-040-3882
NSN 5905-01-080-0108
NSN 6685-01-050-7685
NSN 5895-01-632-3993
NSN 6220-00-741-6344
NSN 5975-01-100-1063
NSN 5999-00-539-3794
NSN 5855-01-440-9880