Board fit and wiring context
The 5-1123723-5: The single-wall shroud guides the mating receptacle but leaves the back of the pins exposed, which helps visual inspection of solder joints after wave soldering.
In a panel where the cable is routed and tied down nearby, this lock is sufficient. For high-vibration environments like an engine compartment, you would step up to a latch-holder or screw-lock design.
