The Amphenol BERGSTIK II 91276-413HLF is a 13-position, single-row unshrouded header on the standard 0.100 inch (2.54 mm) pitch. It uses square tin-plated male pins with a 0.900 inch mating length and a 0.225 inch solder tail for through-hole mounting.
The 0.100 inch pitch is the breadboard-friendly spacing — it drops into standard 0.1 inch perfboard and matches legacy DIP socket footprints. The 13-position count is an oddball; double-check your BOM line because it's not a standard 12 or 14. The unshrouded design means no polarization key; you're relying on visual alignment or the mating receptacle's own keying to avoid a 180-degree mis-mate.
No official cross-reference or successor listed.