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 6610-01-019-9233
NSN 6240-00-514-3507
NSN 5960-01-444-2205
NSN 5915-00-045-9071
NSN 5925-01-056-5127
NSN 6620-01-504-5756
NSN 5998-01-136-2413
NSN 6610-01-646-9101
NSN 5905-01-277-2950
NSN 6240-01-528-6425
NSN 6150-00-040-8446
NSN 4140-01-647-8871