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 5945-01-215-0710
NSN 7035-01-091-1929
NSN 6150-00-707-0123
NSN 5895-00-892-1107
NSN 5960-01-573-6483
NSN 5925-01-310-7662
NSN 5920-00-765-2867
NSN 6145-01-273-2852
NSN 7035-01-145-5059
NSN 6240-01-305-0908
NSN 5910-00-660-5006
NSN 6145-01-240-1340