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 5855-01-020-7982
NSN 5950-01-284-6364
NSN 6320-00-261-9136
NSN 5895-01-645-2420
NSN 5905-01-155-8637
NSN 5960-00-831-2914
NSN 5960-00-105-3656
NSN 5996-01-130-2992
NSN 5950-01-089-8465
NSN 6320-00-731-6134
NSN 5935-01-264-7467
NSN 6220-00-593-1779