What this socket carries
The 927837-5: The silver plating is 39.4µin (1.00µm) thick — suitable for repeated mating cycles in power applications where tin would fret under vibration.
Wire gauge and plating choices across the series
The 927837-5 accepts 13-17 AWG wire; the same-series 927831-4 accepts 17-20 AWG with a thicker 118.1µin (3.00µm) silver plating, and the 927829-5 accepts 11-13 AWG — all three are active-production sockets sharing the Standard Power Timer crimp interface. For the same 13-17 AWG wire gauge, the 927837-1 offers a tin-plated contact instead of silver — the tin version is a cost-reduced option where mating cycle count is lower.