I have a S&W OEM hammer and trigger from a 642. Not sure which "dash" it came out of but I believe it will fit several other newer models like a 442 and other J frames. Please do your own research. No noticeable wear at all. They APPEAR new to me.  I bought this to put into a model 60 J frame to work as a bobbed hammer but went a different direction. Google search will show you how the conversion works. I will take $30 shipped in the lower 48.