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 5985-01-117-1663
NSN 5990-01-463-2279
NSN 5925-00-319-4212
NSN 6685-00-018-1842
NSN 6220-01-509-5946
NSN 6320-01-183-8196
NSN 5945-00-296-8464
NSN 5895-00-763-2231
NSN 5999-01-444-0839
NSN 6150-01-334-8042
NSN 4140-00-578-7726
NSN 6150-01-006-1815