help identify prop valve

I found some old notes where it is listed as a Bendix valve. However, I can't remember where I got it.

Additional info:
The line fitting from the MC to the rear port is 3/8-24, on the GM/universal replacements this is 7/16-24.
The line fitting from the prop. to the rear brakes is 9/16-20, on the GM/universal replacements this is 9/16-18.