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 5925-01-329-7683
NSN 6145-01-184-0321
NSN 5920-01-330-4476
NSN 2925-01-161-5596
NSN 5930-01-214-9613
NSN 5895-00-127-6713
NSN 5895-01-104-5865
NSN 6610-00-008-0217
NSN 5998-01-323-6425
NSN 5945-01-511-0749
NSN 5990-01-370-4785
NSN 7035-00-368-8761