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 7035-01-403-2841
NSN 5990-01-481-3080
NSN 5905-01-311-3767
NSN 5855-01-456-4878
NSN 6130-01-457-3712
NSN 5835-00-958-6231
NSN 5985-01-340-7215
NSN 6685-00-149-1026
NSN 5855-01-506-6767
NSN 5835-01-268-1924
NSN 6105-00-295-2558
NSN 5835-00-106-2120