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 6105-01-355-3535
NSN 5999-01-615-6165
NSN 5915-00-462-3479
NSN 5895-01-227-8102
NSN 6645-00-664-4665
NSN 6105-01-043-9569
NSN 6620-00-780-7786
NSN 6150-00-914-7107
NSN 6110-01-506-7141
NSN 6145-01-396-4806
NSN 6685-01-629-4189
NSN 5960-01-212-4227