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 5999-00-471-7455
NSN 5996-00-272-2560
NSN 6150-00-018-8646
NSN 5930-01-575-7236
NSN 5950-01-512-6840
NSN 5835-00-764-4388
NSN 5965-00-296-9994
NSN 5975-01-272-6182
NSN 5990-01-386-5561
NSN 6220-01-534-0550
NSN 5935-00-078-7250
NSN 5935-01-113-7723