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 6320-01-326-1316
NSN 5975-01-225-8050
NSN 5975-01-527-3906
NSN 6145-00-351-4539
NSN 5990-01-264-9759
NSN 5915-00-335-6336
NSN 6620-00-270-3275
NSN 5965-00-387-3259
NSN 6620-01-091-9697
NSN 5965-01-201-7487
NSN 6145-00-414-5315
NSN 5925-01-080-2484