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 5965-00-356-3838
NSN 7035-01-460-5117
NSN 5960-01-142-1995
NSN 6620-01-243-5281
NSN 5960-01-570-8605
NSN 5996-00-866-1356
NSN 5990-00-288-1820
NSN 5998-01-563-9190
NSN 5960-01-062-4667
NSN 5960-01-331-3817
NSN 6620-01-503-6576
NSN 5895-00-248-7477