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 5996-01-431-2297
NSN 5935-00-767-5394
NSN 2925-01-446-0525
NSN 5920-01-253-8261
NSN 6110-01-297-6810
NSN 6130-00-411-9535
NSN 5960-00-416-6016
NSN 6110-00-929-6125
NSN 2925-00-051-1467
NSN 5915-00-636-0629
NSN 5996-01-227-2242
NSN 5950-01-027-8369