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 6105-01-569-6689
NSN 5895-01-322-4953
NSN 5996-01-246-2472
NSN 6240-00-541-7032
NSN 6220-01-302-1354
NSN 6620-00-770-9794
NSN 6150-01-420-9940
NSN 6610-01-100-8128
NSN 6105-00-078-3282
NSN 5985-01-381-5668
NSN 6620-01-116-3983
NSN 6135-01-205-5965