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 5930-01-455-2554
NSN 5905-00-910-8135
NSN 5930-01-217-3418
NSN 6645-01-221-9424
NSN 5960-01-641-5493
NSN 5915-00-991-3406
NSN 5895-01-548-0279
NSN 5910-01-498-4323
NSN 6135-00-793-1809
NSN 6150-00-532-7099
NSN 5895-00-472-3985
NSN 5905-00-857-7857