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 5996-00-815-4650
NSN 6150-00-793-7831
NSN 5920-01-226-7876
NSN 7035-01-412-8322
NSN 5965-01-452-8406
NSN 5835-01-130-4952
NSN 5895-00-144-9114
NSN 5915-00-147-0603
NSN 7035-00-275-5604
NSN 5985-01-077-4995
NSN 5965-01-260-2547
NSN 5905-01-118-8692