I have a door that is missing the plate for the latch to hold locked.
Door says
Series 890
AAMA/NWWDA 101/I.S. 2-97
SGD-R15-120X96
SGD-R20-120X82
Please direct me to the needed part, thanks!

It certainly looks like that might be the right part, although that doesn't explain all the screw holes which do not seem necessary given the part shown.
Thanks,
Bob
Hey, Bob. It's possible previous home owners used multiple different keepers over the years, requiring them to redrill installations holes each time.
Aha! That works. This keeper looks like an older version of our 89-024. Yours is of course much wider than ours, but I'm afraid we are unable to get anything in that exact size.