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 5895-01-582-8136
NSN 6610-01-274-6223
NSN 5990-00-902-7764
NSN 7035-00-541-8516
NSN 5998-01-337-8454
NSN 5925-00-369-1596
NSN 6105-01-502-8831
NSN 6130-01-301-7684
NSN 6645-01-491-6965
NSN 6110-00-153-0936
NSN 5985-00-080-7460
NSN 6135-01-507-4346