I own three (soon to be four!) older Chief Specials & have a factory leaflet which includes an exploded view & parts list. I also own a modern model 442-2 but don't have a diagram, nor can I find one on the internet. Anybody know where to find one online?
I believe most of the parts translate, in name if not actual part number. But in this case I'm mainly interested in the internal lock parts, in particular the official name of the parts. I've heard "the flag" used in reference (I think) to the actual internal part that rotates up to lock the hammer, but have never heard a name for the other main part-- the cam-shaped piece with the keyhole.

No replies (yet). I googled & found a list of schmetaics on Brownells site-- however when I clicked on 642-2 I got a generice S&W revolver drawing with both leaf main spring & coil main spring details. No illustration of internal hammer (aka hammerless) -specific parts, let alone internal lock parts. Still looking I guess...