a 6 month old part failed, luckily I still had the original, I had replaced it totally "because it was probably time to". Turns out the new one has the same dimensions, electrical value, even part number, but was made overseas using aluminum rather than brass internals. Today I found out that all things being equal doesn't really mean all things are really equal, sometimes age has it's value and you cant get it any other way than over time. Old switch gets another ride, new one goes to the curb.