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 5895-00-199-4964
NSN 6320-00-779-5923
NSN 6220-00-012-0027
NSN 5996-00-952-7091
NSN 6130-01-228-8062
NSN 5930-01-212-2129
NSN 6135-00-935-8769
NSN 5999-00-068-8976
NSN 5960-01-224-0414
NSN 6320-00-882-7061
NSN 5905-00-170-5500
NSN 5935-01-608-3840