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 5935-01-491-2936
NSN 5996-00-224-6192
NSN 5975-01-083-6225
NSN 6650-01-374-4923
NSN 5920-00-900-5336
NSN 5930-01-057-1024
NSN 6320-00-894-1644
NSN 6610-01-046-4844
NSN 6685-01-605-0946
NSN 5996-01-023-8370
NSN 5925-00-053-3536
NSN 5950-00-286-3301