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 6610-01-291-4173
NSN 5990-00-254-4825
NSN 6110-01-146-8150
NSN 6105-01-481-4992
NSN 6145-00-336-8257
NSN 4140-01-377-5828
NSN 2925-01-353-3928
NSN 5855-00-198-3197
NSN 6240-01-471-4180
NSN 5960-00-257-4203
NSN 5910-01-242-2425
NSN 5920-00-345-5833