Part says 9311 A-S PA with a B at the bottom of the lock. Measurements between the holes I believe is 2 1/8 and from the hole to the back of the lock measures 11/16.
Bob from SWISCO responded:
January 19, 2021
See our 90-278. This has hole spacing of 2-1/16". Double-check yours; be sure to measure from the center of each mounting hole. Many thanks.