The Hirose FX4C2-32S-1.27DSAL(71) is a 32-position receptacle from the FX4 series of fine-pitch mezzanine connectors. It uses a 0.050" (1.27mm) pitch in a 2-row arrangement, with gold-plated center strip contacts.
The mated stacking heights are 7mm, 8mm, and 10mm — the actual board-to-board gap depends on which FX4 header you pair it with. The 0.236" (6.00mm) height above board for this receptacle means the board spacing is set by the header's own height. For a 7mm stack, you'd use the shortest header in the series; for 10mm, the tallest.
It won't wear out on a single install, but if you're planning frequent reconnections (like a test fixture or a modular board that gets swapped weekly), you'd want a thicker gold option. For a one-time assembly in a sealed enclosure, it's more than adequate.