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 6130-01-062-1640
NSN 6105-00-244-1729
NSN 5945-00-059-8902
NSN 5930-01-455-7423
NSN 6105-00-557-8962
NSN 7035-01-406-5232
NSN 6145-01-133-8744
NSN 5996-00-065-8376
NSN 2925-01-386-7392
NSN 6320-01-192-0332
NSN 5905-01-292-8086
NSN 5996-00-833-2521