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 5925-00-431-3256
NSN 6130-01-142-4522
NSN 5996-01-380-8782
NSN 5950-01-539-6223
NSN 7035-00-517-8232
NSN 5920-01-634-0250
NSN 4140-00-654-9146
NSN 7035-00-834-2090
NSN 6320-01-484-7734
NSN 6105-01-371-4621
NSN 6105-00-900-3361
NSN 6150-01-458-6873