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 6110-01-519-3127
NSN 5950-01-624-5678
NSN 5930-00-089-6136
NSN 5975-01-095-5122
NSN 2925-01-394-5650
NSN 5855-01-609-7173
NSN 6610-01-275-9771
NSN 6650-00-724-8258
NSN 5925-01-418-8051
NSN 6130-01-136-8920
NSN 5950-00-468-5508
NSN 6135-01-381-4675