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 5895-01-614-0269
NSN 6105-01-359-3886
NSN 5925-00-770-4068
NSN 5990-01-248-0108
NSN 6320-01-527-0211
NSN 5895-00-211-7193
NSN 5998-00-828-4059
NSN 5960-00-152-9488
NSN 5895-01-261-3094
NSN 5999-01-007-7328
NSN 6135-00-248-4102
NSN 5960-01-274-7628