HP 826405-001 Display Hinge Kit is a replacement set of hinges for the display assembly of the HP ProBook 440 G3. It is listed in the service guide as the hinge kit used with this notebook model.
The set includes one left hinge and one right hinge. These parts fit at the display enclosure and are removed when servicing the display assembly, making the kit relevant when replacing its hinges.
The guide lists the hinges separately from the display bezel, screen panel and display/webcam cable kit; those components are not identified as part of this hinge kit.