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 6220-01-461-7335
NSN 5985-01-592-4823
NSN 5855-00-149-0766
NSN 5999-00-597-5054
NSN 6150-01-438-2978
NSN 6145-01-541-2359
NSN 5996-01-497-3412
NSN 5915-00-837-1864
NSN 5998-00-793-9705
NSN 5960-01-198-3933
NSN 7035-01-277-6677
NSN 5960-00-569-9534