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 5996-01-236-2331
NSN 5975-01-394-5281
NSN 5950-00-284-5693
NSN 5915-01-172-9864
NSN 5999-01-605-4053
NSN 5990-01-317-9297
NSN 6240-01-120-7594
NSN 6610-01-045-1823
NSN 5855-01-298-2519
NSN 5960-01-391-4701
NSN 6240-01-147-0379
NSN 5945-00-850-2844