Hi @wgrabley ,
Thanks for your question.
For what it’s worth - I found 78-50-0119-00-ND which looks awfully similar, except for having 3 pins instead of 5 pins. 5 pins is non-standard and I am not sure what the extra pins are used for as it appears to be a custom switch of some kind. 5 pin switches typically use 3 pins for a Single Pole Double Throw (SPDT) switch with additional 2 pins for illumination.
This TechForum post shows how switches normally have either 2, 3, 4, 6, 9, 12 pins, unless there are dummy pins, illumination, or some custom function.
Basics of Switches and Relays: An Overview of Poles and Throws