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 6240-01-208-9587
NSN 6685-00-819-8831
NSN 6320-01-265-0665
NSN 6105-01-529-8154
NSN 6650-01-487-4949
NSN 5950-00-486-5069
NSN 5910-00-825-6561
NSN 5835-01-618-4906
NSN 6620-00-290-6505
NSN 6645-00-654-8804
NSN 6645-01-567-2968
NSN 5990-00-150-6979