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 5915-01-152-7227
NSN 6320-00-270-8222
NSN 4140-00-837-2658
NSN 5910-01-258-4887
NSN 5910-00-520-8490
NSN 6110-01-464-4337
NSN 6145-00-062-7897
NSN 6620-01-088-1272
NSN 7035-01-423-8343
NSN 6110-01-459-9022
NSN 5930-01-387-1283
NSN 5930-01-399-5508