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 7035-00-361-5975
NSN 5985-01-552-2655
NSN 6105-00-805-5802
NSN 5925-00-175-6612
NSN 5975-01-350-7682
NSN 5925-01-432-6603
NSN 4140-01-207-3577
NSN 6645-01-116-9634
NSN 5925-01-361-0255
NSN 6220-01-511-0830
NSN 5835-01-584-8538
NSN 5985-01-489-7056