WARNING: This page is about a different car, the 2016 Infiniti QX80. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Brake Pad Components With Torque Specification
Courtesy of NISSAN NORTH AMERICA, INC.
1.
Cylinder body
2.
Inner shim
3.
Inner pad (with pad wear sensor)
4.
Pad retaining
5.
Torque member
6.
Outer pad
7.
Outer shim
: Apply PBC (Poly Butyl Cuprysil) grease or silicone-based grease.