I want to have it changed to a thumb latch so it meets code as I can't have keyed lock on any door going to outside.
See photo with ruler , looks like Product Code: 40-049 might work to replace whole unit or can the inside keyed portion be replaced with hand turned non locking latch. If so what part.
Also is this a hard switch, I have metal drill if needed. But not much experince with locks but overall handy usually
Joe