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 6220-00-767-5080
NSN 5905-01-605-4978
NSN 5905-00-296-8472
NSN 5975-00-814-5659
NSN 6105-01-629-4302
NSN 5960-00-706-9224
NSN 6645-01-407-8326
NSN 5905-01-139-6776
NSN 6220-00-595-6954
NSN 5998-01-618-2981
NSN 6240-00-891-8586
NSN 2925-00-155-2100