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 6110-01-386-7588
NSN 5910-00-163-3938
NSN 5920-01-280-5089
NSN 6150-01-101-2577
NSN 6320-01-066-1766
NSN 2925-01-440-7617
NSN 6645-00-337-3638
NSN 5996-01-503-4233
NSN 5935-00-218-5845
NSN 5945-01-022-9998
NSN 6145-01-117-2458
NSN 5998-01-352-5722