The Amphenol FCI 68695-154HLF is a 54-position dual-row unshrouded header from the BergStik II series, on the standard 0.100" (2.54 mm) pitch that defines the board-level footprint for this class of board-to-board interconnect.
Push-pull fastening means no secondary locking hardware; retention relies on the contact normal force and the unshrouded pin geometry.
Plating and duty cycle
That thickness is well into the industrial-grade range — suited for repeated mating cycles and environments where bare tin would fret or corrode. The phosphor bronze base metal adds spring retention and resists stress relaxation over temperature swings. For a 54-position header that may see field-service reconnections, the plating grade is the reliability differentiator.