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 6620-01-106-3553
NSN 5960-01-170-5932
NSN 5920-01-424-0745
NSN 5999-01-504-6716
NSN 5965-01-210-7784
NSN 6620-00-712-4431
NSN 6620-01-577-6285
NSN 2925-00-156-6615
NSN 5835-00-106-2120
NSN 5996-00-038-0234
NSN 5950-01-357-6476
NSN 6110-01-566-8069