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 5999-01-312-6852
NSN 6650-01-098-8287
NSN 5975-00-889-5118
NSN 5960-00-794-7463
NSN 5895-01-140-3374
NSN 6145-00-919-4232
NSN 5835-00-649-9402
NSN 5996-00-605-6319
NSN 5998-01-084-7037
NSN 5905-00-712-6115
NSN 6685-00-077-8490
NSN 5905-01-198-7744