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 6645-01-586-5278
NSN 6320-01-540-4885
NSN 2925-01-033-8948
NSN 6145-01-272-5892
NSN 5996-01-299-7792
NSN 5945-00-287-8022
NSN 6685-01-418-0925
NSN 6150-01-219-9579
NSN 6685-01-201-9294
NSN 6645-01-521-4383
NSN 5945-01-248-1898
NSN 6150-00-554-4576