WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Exploded View Of Starter Motor (4 Speed A/T Models) With Torque Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Exploded View Of Starter Motor (5 Speed A/T Models) With Torque Specifications