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 5998-00-593-1457
NSN 5925-01-058-1853
NSN 5985-00-433-4276
NSN 5999-01-516-9738
NSN 6645-00-130-8464
NSN 5925-00-336-9150
NSN 5999-01-222-3657
NSN 6240-01-023-7720
NSN 5930-01-215-2974
NSN 5985-01-117-3839
NSN 5910-01-340-3588
NSN 5950-01-412-4932