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 5960-00-172-5264
NSN 5990-01-027-0568
NSN 5990-01-633-9503
NSN 5895-00-554-4573
NSN 5999-00-409-5631
NSN 5960-00-415-1797
NSN 6320-00-931-4855
NSN 5905-00-082-1927
NSN 5960-00-826-7697
NSN 5855-00-586-6255
NSN 6645-00-692-2809
NSN 6105-01-280-0488