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 5985-01-218-5643
NSN 6130-00-100-0175
NSN 6610-00-845-1070
NSN 6620-00-658-6588
NSN 5996-00-898-7036
NSN 6685-01-580-4974
NSN 6150-01-431-8617
NSN 6135-00-906-0984
NSN 6645-01-511-3272
NSN 5895-01-424-2070
NSN 5985-00-085-1710
NSN 5965-00-866-3371