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 7035-00-782-7046
NSN 5855-00-916-2236
NSN 5998-01-509-9392
NSN 7035-01-410-9197
NSN 5996-01-645-4831
NSN 5998-00-058-2602
NSN 6685-00-529-6220
NSN 7035-01-364-8454
NSN 5925-01-482-6206
NSN 6105-01-142-3199
NSN 6320-00-343-1798
NSN 5920-00-391-6252