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 5930-00-188-2175
NSN 5950-01-082-9602
NSN 5985-01-420-2740
NSN 6135-01-643-5809
NSN 5930-00-406-1159
NSN 5905-01-519-9021
NSN 6145-00-228-7606
NSN 5930-00-977-1158
NSN 6650-00-905-9317
NSN 2925-01-248-4039
NSN 6610-01-376-9199
NSN 5925-01-220-1916