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 6150-01-323-3582
NSN 5935-00-224-9553
NSN 5965-01-616-6359
NSN 6135-01-426-0671
NSN 5905-00-959-5781
NSN 6145-00-365-0121
NSN 5990-00-759-9305
NSN 5960-00-539-2748
NSN 5910-00-877-3773
NSN 5855-01-254-3041
NSN 5930-00-027-2807
NSN 5996-00-458-1366