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 5975-00-012-0095
NSN 5935-00-907-3203
NSN 6320-01-108-5933
NSN 5998-00-205-4138
NSN 5996-00-676-7109
NSN 6105-01-492-5723
NSN 5895-01-449-2664
NSN 6145-01-445-9788
NSN 5975-00-881-0099
NSN 5950-01-183-2077
NSN 5975-01-085-5824
NSN 6320-01-292-2232