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 6150-00-155-3578
NSN 7035-00-104-7613
NSN 5935-00-018-3970
NSN 5935-01-634-0668
NSN 6105-01-465-2536
NSN 5855-01-232-9440
NSN 5960-01-131-9733
NSN 5925-01-361-6279
NSN 5935-01-471-2798
NSN 6220-01-386-5150
NSN 5975-00-244-0706
NSN 5999-00-222-6226