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 5965-00-351-3575
NSN 6145-00-275-4046
NSN 7035-00-371-7749
NSN 6135-01-061-1862
NSN 6610-01-076-4800
NSN 5998-01-581-3650
NSN 5975-01-467-7051
NSN 6150-00-144-7115
NSN 5975-00-865-3537
NSN 6105-00-553-8943
NSN 5945-00-392-1946
NSN 5920-00-298-0700