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 2925-00-767-4245
NSN 5920-01-561-4684
NSN 6150-01-655-0311
NSN 5855-01-329-6087
NSN 5945-01-023-6080
NSN 6610-01-608-2424
NSN 5965-00-564-4399
NSN 6105-01-454-0159
NSN 6135-01-477-5259
NSN 5915-01-122-5515
NSN 6620-01-352-5640
NSN 6685-01-398-7371