What is the difference between the part numbers 794407-1 and 1-794407-1?
Adding the 1- prefix will change the plating on the mating surfaces, on these two TE Connectivity/Amp contact sockets.
The part number 794407-1 will have Tin plating on the mating surface.
The part number 1-794407-1 will have Gold plating on the mating surface.
Both of these contact sockets will work with the same Mini-Universal MATE-N-LOK housings.