Latch on my casement window
Truth is stamped on a crank out arm
Thanks for reaching out to us! Since this is a Truth hardware window, I believe you may be able to use either the 38-095 or the 38-096 for your repairs. You'll need to carefully compare each of them to your existing hardware to determine which of them is the correct fit.
If the dimensions are not a match, I suggest reviewing and comparing the 38-138 and 38-139 as well.
To replace the plate installed behind the lock, you'll likely need the 38-158 Roto Locking Handle Plate but be sure to double check the installation hole spacing.
The dimensions for all of the recommended hardware can be found on their respective pages in the online catalog.