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 6610-01-597-1657
NSN 5925-00-142-0752
NSN 6610-01-485-3074
NSN 6135-01-453-5069
NSN 6150-01-078-6301
NSN 5985-01-537-0318
NSN 5960-00-739-3357
NSN 6320-01-357-3222
NSN 5855-00-427-7848
NSN 6150-00-104-8035
NSN 5895-01-545-1899
NSN 6220-01-268-2913