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 5925-00-632-6098
NSN 7035-01-227-2546
NSN 6110-01-031-3988
NSN 6105-01-490-6551
NSN 5960-01-125-2356
NSN 6135-01-643-1793
NSN 5930-01-287-6024
NSN 5855-01-589-9339
NSN 5925-00-715-2001
NSN 6320-01-495-1244
NSN 6240-01-425-4741
NSN 6320-01-316-2190