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 5996-01-519-3161
NSN 5895-00-172-8732
NSN 6645-01-542-6159
NSN 6145-01-149-8588
NSN 5990-01-411-5930
NSN 5895-00-893-2627
NSN 2925-01-480-8273
NSN 5930-01-295-1257
NSN 6320-01-384-7079
NSN 6135-01-125-4867
NSN 5915-00-590-8143
NSN 5975-00-862-4506