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 5975-00-203-1265
NSN 5960-00-307-9919
NSN 5975-00-566-9393
NSN 6150-01-414-1822
NSN 4140-01-255-8664
NSN 5905-01-416-3884
NSN 5965-01-398-9579
NSN 5975-00-478-2126
NSN 6620-00-025-1889
NSN 5915-01-345-6912
NSN 5915-01-604-9404
NSN 6135-00-416-2898