WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Air Mix Door Motors - ATC - Front Heater And Cooling Unit Assembly With Related Components
Courtesy of NISSAN NORTH AMERICA, INC.
Fig 2: Identifying Air Mix Door Motor - MTC - Heater And Cooling Unit Assembly With Related Components