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 6645-00-474-5689
NSN 5985-00-602-2089
NSN 5965-01-279-4806
NSN 5895-01-649-8229
NSN 5960-00-597-2680
NSN 5996-00-454-0281
NSN 4140-00-531-6696
NSN 6135-01-177-3552
NSN 6145-01-427-3520
NSN 5945-01-062-0670
NSN 2925-00-788-0043
NSN 6610-01-579-0134