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 6620-00-684-6771
NSN 5895-00-999-1388
NSN 5998-01-410-8708
NSN 5915-01-359-8329
NSN 5996-00-428-3929
NSN 5950-00-069-9892
NSN 5910-01-478-7346
NSN 5910-00-881-5160
NSN 6145-01-070-4913
NSN 6320-00-456-0836
NSN 5985-01-573-7454
NSN 5855-01-067-8841