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 5985-00-981-2666
NSN 6650-01-226-2397
NSN 5975-01-168-4374
NSN 5999-01-543-3624
NSN 5855-01-010-4921
NSN 5996-01-170-1915
NSN 5835-00-540-9669
NSN 5950-01-433-3282
NSN 5999-01-398-1186
NSN 5855-00-310-2740
NSN 5855-01-606-3745
NSN 7035-01-249-4547