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 6320-01-106-4414
NSN 6110-01-471-6238
NSN 6320-00-481-7291
NSN 6320-01-322-4950
NSN 7035-01-510-2777
NSN 6150-00-081-2063
NSN 7035-01-485-5114
NSN 6145-01-285-6002
NSN 6320-01-329-2297
NSN 6320-00-564-2772
NSN 6645-00-987-3409
NSN 6150-00-233-6356