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 6610-01-628-6044
NSN 5998-00-233-6392
NSN 5965-00-524-3402
NSN 6620-01-284-6526
NSN 6685-00-099-0831
NSN 5855-01-413-2213
NSN 5895-01-415-3114
NSN 6685-01-462-1770
NSN 6650-00-217-6292
NSN 6150-01-132-9273
NSN 6145-01-605-0948
NSN 5895-01-426-8942