Board-to-Board Fit: Pitch, Positions, and Stack Height
The 76342-411LF: Mated stack height is 11.04 mm — that is the z-height from one board to the other when the receptacle and header are fully mated. The 0.275" (6.99 mm) insulation height on the receptacle side leaves room for the header's post length to engage.
Tin does not handle the repeated wipe of high-cycle mating the way gold does; expect a few hundred cycles max before fretting corrosion becomes a risk.
Packaged in tube — standard for through-hole receptacles. The base product number is 76342; the -411LF suffix encodes the plating and packaging variant.