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 6135-01-482-1161
NSN 2925-00-918-0859
NSN 2925-01-149-0353
NSN 6105-00-617-1950
NSN 6150-01-423-0505
NSN 6220-00-902-7328
NSN 5950-00-174-4372
NSN 6150-01-225-6415
NSN 6685-00-460-6169
NSN 6320-01-103-6218
NSN 5930-01-163-3103
NSN 5998-01-658-0653