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 6135-00-452-2266
NSN 5998-00-431-0342
NSN 5999-00-877-3448
NSN 5998-01-461-3771
NSN 5985-01-560-5776
NSN 5975-01-634-0678
NSN 7035-01-230-0250
NSN 6220-01-342-3887
NSN 6685-01-086-4715
NSN 5920-00-471-2548
NSN 5920-01-525-9443
NSN 5910-00-123-2554