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 6685-01-005-5497
NSN 6220-00-758-2378
NSN 5935-00-752-3109
NSN 5895-01-211-9135
NSN 5905-01-387-4998
NSN 5935-01-376-9480
NSN 5996-00-416-8877
NSN 6240-01-063-7685
NSN 5915-01-114-5908
NSN 6145-00-117-8861
NSN 6110-00-108-6478
NSN 6610-00-163-9559