WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Starter Motor Replacement Components (4-Speed A/T Models) - With Torque Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Starter Motor Replacement Components (5-Speed A/T Models) - With Torque Specifications