Color gray or color blue
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 5920-00-187-0260
NSN 5960-01-658-9538
NSN 5930-01-004-8339
NSN 6240-00-001-1524
NSN 5935-01-400-5949
NSN 6610-00-034-3709
NSN 6610-00-804-2701
NSN 6220-00-617-9616
NSN 2925-00-877-4307
NSN 5996-01-574-8853
NSN 6650-01-422-3395
NSN 7035-00-922-5700