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 5925-01-630-5701
NSN 5960-01-020-6316
NSN 5895-01-472-4404
NSN 5990-01-050-1102
NSN 7035-01-549-2183
NSN 6645-01-384-7791
NSN 7035-01-463-3368
NSN 6610-00-348-6696
NSN 6650-00-888-7956
NSN 5925-00-005-3694
NSN 2925-00-569-2981
NSN 6145-01-647-8838