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 5905-01-324-5229
NSN 6610-00-051-4139
NSN 5985-01-201-2148
NSN 5910-00-625-5877
NSN 4140-01-484-5070
NSN 5990-01-577-2120
NSN 5985-01-532-3693
NSN 2925-00-998-3510
NSN 5835-01-173-1578
NSN 2925-00-644-0028
NSN 6240-01-595-6812
NSN 6130-00-477-7219