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 5985-01-598-7628
NSN 6110-01-069-7817
NSN 5910-01-262-4133
NSN 5975-01-149-7377
NSN 4140-01-360-9873
NSN 6145-01-422-3937
NSN 6240-01-114-1926
NSN 5945-00-190-1161
NSN 6240-00-527-8614
NSN 6135-01-511-1975
NSN 5945-01-634-0588
NSN 6685-01-362-5713