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 7035-01-562-4438
NSN 6610-01-338-5338
NSN 5925-01-352-3349
NSN 5905-00-472-0375
NSN 5990-00-301-3386
NSN 5965-00-201-1167
NSN 6150-00-074-2851
NSN 5895-01-412-0739
NSN 5999-01-184-8794
NSN 6110-01-243-8780
NSN 5960-00-263-0106
NSN 5999-00-099-6889