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 5950-00-181-9285
NSN 5950-01-595-5647
NSN 5935-01-393-4289
NSN 5985-01-532-7205
NSN 6105-01-596-7746
NSN 5975-01-472-9091
NSN 6620-00-113-1380
NSN 5930-00-581-1606
NSN 6110-01-483-1521
NSN 5905-01-526-4560
NSN 5855-01-068-3683
NSN 6620-01-454-8926