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 5855-00-912-3885
NSN 5910-01-086-9066
NSN 5996-00-186-8709
NSN 6320-00-456-2092
NSN 5999-00-448-2755
NSN 6135-00-951-3426
NSN 5998-00-105-1001
NSN 6645-00-876-4413
NSN 6220-00-812-0515
NSN 6150-01-189-1528
NSN 6145-01-204-1117
NSN 5950-01-643-1029