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 5975-01-425-5171
NSN 5920-01-137-5447
NSN 6145-00-418-2719
NSN 2925-01-279-6692
NSN 6645-00-315-9254
NSN 6320-00-116-3658
NSN 6320-01-607-1491
NSN 6105-00-759-5509
NSN 5998-01-342-3498
NSN 5835-00-198-4936
NSN 5950-01-526-1810
NSN 5920-00-954-7270