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 6645-00-527-6531
NSN 5998-00-464-9134
NSN 5945-00-469-2971
NSN 6645-01-022-2632
NSN 6110-00-405-2361
NSN 5996-01-550-3111
NSN 5895-00-617-6340
NSN 5998-01-381-2159
NSN 5835-01-397-2865
NSN 5990-01-234-4607
NSN 6135-01-362-4256
NSN 6135-01-184-0727