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 5960-00-871-3950
NSN 5996-01-627-5094
NSN 6130-00-528-7838
NSN 6685-00-981-7812
NSN 5905-00-228-6986
NSN 5998-01-250-7424
NSN 5835-00-562-7524
NSN 5935-01-248-4982
NSN 5895-01-477-9225
NSN 5910-01-157-8366
NSN 5999-01-359-4243
NSN 5920-01-083-4995