Part No.#8244 is stamped onto the underside of my broken Sash Lock. My Harvey Windows were installed when my house was newly built in 1999.
As the sash lock sits on the top of the lower inside window, its width = 2 7/8", by 3/4" deep. The (2) holes on this Sash Lock are 2 1/4" apart; measuring from center of 1st hole to center of 2nd hole.
The Finger portion of the lock you use to slide/set this Lower Window Lock into the Upper Window matching/mating lock Tab is what broke on my Sash Lock. You can just see what remains of the broken finger (thumb) tab for leverage to lock-unlock the sash, in my picture.
One attached picture shows the Sash Lock 'removed' in the Unlock position w/Ruler along side it.
A 2nd Pic shows the same Sash Lock installed and working on a separate window.
FYI - The mating part that this Sash Lock rotates into, on the lower frame of the Upper Window, is not broken, it's fine.
Thanks in advance for your help.
Mike