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 6685-00-108-6374
NSN 5965-01-158-1522
NSN 5930-01-551-1300
NSN 6220-01-470-1748
NSN 5945-01-067-7955
NSN 5960-01-481-3722
NSN 6145-01-607-3298
NSN 6150-01-062-0728
NSN 6610-01-029-8749
NSN 6645-01-493-8632
NSN 2925-01-146-0278
NSN 6135-00-016-0071