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 6610-00-864-1096
NSN 6110-01-598-1820
NSN 5915-01-629-9166
NSN 5985-01-535-3368
NSN 5975-01-352-7169
NSN 7035-01-501-7259
NSN 5960-01-560-8461
NSN 7035-01-412-3692
NSN 5835-01-435-4139
NSN 5945-01-165-1772
NSN 6150-01-345-7242
NSN 6240-01-303-2395