RockAuto Parts Catalog
Go to Nissan/1992/2.0L L4/NX/Brake,Wheel Hub/Caliper
Just make sure to pick calipers that include the mounting brackets (aka torque member). You can evaluate this best by looking at the photos. Also, make sure that you are getting a bore diameter of 2.126". If it says, "Japan built," that generally means its the AD22VF caliper with the 2.126" bore.
So, for example, the listed Raybestos FRC10155 and 10156 would be good. They don't include pads, but you would probably want to upgrade their pads anyway. You can't beat that price, either.