What the 0.156" pitch and friction lock mean for your board
The 1744194-6: The friction lock is the feature that keeps the mating MTA-156 receptacle from backing out when the harness gets tugged; if you've had intermittent opens on a conveyor line, this lock is what was missing. Mates with any standard MTA-156 receptacle housing.
Termination and field-fit notes
Through-hole solder termination — the 0.125" (3.18mm) post length fits standard 1.6mm PCBs with enough tail for a good fillet. Overall contact length is 0.550" (13.97mm). Tin-plated mating surface and tin-plated post.
