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 6135-01-388-2581
NSN 5895-00-868-5995
NSN 5999-01-077-3270
NSN 5996-01-507-5742
NSN 5975-01-399-0113
NSN 6240-01-285-7857
NSN 6130-01-571-7932
NSN 5855-01-495-1339
NSN 5935-01-035-9452
NSN 5835-00-967-0998
NSN 6685-01-289-4808
NSN 5930-01-483-3496