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 6145-01-605-0948
NSN 5950-00-144-4139
NSN 5895-01-439-3334
NSN 5999-00-087-7923
NSN 5965-00-739-2063
NSN 5960-00-220-6892
NSN 6240-01-507-3609
NSN 5920-00-691-7727
NSN 2925-00-091-6745
NSN 6145-01-242-9211
NSN 5920-01-014-0611
NSN 5999-00-440-0285