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 6620-01-107-9916
NSN 5965-01-024-7960
NSN 5996-00-844-6227
NSN 5930-01-468-6478
NSN 5996-01-286-3806
NSN 5950-01-384-9573
NSN 5895-01-144-2137
NSN 6645-00-867-6724
NSN 6105-00-316-5098
NSN 4140-01-609-0255
NSN 6685-01-258-9548
NSN 5855-00-472-2055