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 5996-01-394-5768
NSN 5905-01-342-5203
NSN 5910-01-177-7589
NSN 6620-01-255-7757
NSN 2925-00-452-6403
NSN 5985-00-960-3151
NSN 6240-00-114-5105
NSN 4140-00-917-8734
NSN 6685-00-993-8279
NSN 5835-01-515-6537
NSN 6130-01-340-7846
NSN 5945-01-498-0790