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 5835-01-035-9345
NSN 6685-00-265-7530
NSN 5935-01-243-2517
NSN 2925-00-330-7316
NSN 5855-00-411-8688
NSN 5925-01-073-3682
NSN 5905-01-077-7096
NSN 5975-01-555-9000
NSN 5985-01-349-0610
NSN 5975-01-423-5564
NSN 6645-01-161-3689
NSN 5930-00-760-9182