With split and keyway
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 5998-01-287-8546
NSN 5998-01-383-0079
NSN 5895-01-180-4579
NSN 5935-01-141-0393
NSN 6135-01-545-6582
NSN 5996-01-121-2567
NSN 5925-00-067-8322
NSN 5930-01-605-1515
NSN 7035-01-213-5590
NSN 5975-00-011-3455
NSN 5945-01-454-3121
NSN 5975-00-690-9061