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 5975-00-144-7878
NSN 5915-01-108-8526
NSN 5998-01-603-2332
NSN 7035-01-480-9761
NSN 5835-00-160-7142
NSN 6130-00-889-1461
NSN 5895-00-600-2370
NSN 5975-00-501-8058
NSN 5910-00-841-7183
NSN 6105-01-425-1718
NSN 5895-00-406-7671
NSN 5990-01-057-4191