A soft metal or nonmetal sleeve, designed to mate with a pin-rivet. it may include an external wrenching facility which breaks off at a perdetermined torque to form a head.
NSN 5996-01-067-8716
NSN 6110-01-369-5561
NSN 5855-01-158-2709
NSN 5855-01-068-3683
NSN 5960-01-290-2604
NSN 5905-01-296-7522
NSN 5915-00-156-2083
NSN 5910-01-528-6226
NSN 6645-01-093-5015
NSN 5930-01-563-2767
NSN 5950-01-342-9574
NSN 5950-01-372-6039