The 67996 base product number covers a range of position counts; the 67996-118HLF is the 18-position variant. No pin-compatible direct replacement from Amphenol ICC is listed, but the same series offers 10-, 14-, and 20-position siblings with identical pitch, plating, and housing — confirm your circuit count before committing.
Overall contact length of 0.425" (10.80 mm) includes the mating pin and solder post — the stack height between boards is set by the mating receptacle's insulator height plus the 0.230" pin engagement.