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 6610-01-458-6743
NSN 6650-01-580-8897
NSN 6130-01-421-3354
NSN 5996-01-487-8782
NSN 7035-00-076-4097
NSN 5930-00-260-5086
NSN 5895-01-130-8284
NSN 7035-01-525-8263
NSN 5999-01-031-7533
NSN 5945-01-313-3721
NSN 5950-01-491-7501
NSN 6645-01-461-8870