I am looking for a horizonal osc coil for a Philco 50T1403 code 125. looks like there is a couple numbers that may work.
The service manual list a 32-4470-3
The coil in the set is a 32-4506.
Both of which cross to a Thordarson HS-3
Any help would be appreciated.

Merit TV-162 crosses to Thordarson HS-3. Take a look at the pictures in this listing and see if it looks like a good match to your original coil. Miller 6183 is apparently another good sub.

https://www.ebay.com/itm/Merit-TV-162-Horizontal-Oscillator-Sync-15750-Cps-Miller-6183/193668437626?hash=item2d1789d67a:g:lJsAAOSwhG5fY8L X

It mounts entirely different but the diagram and specs look good. I have one on the way.
Thanks for crossing it I need to find some cross reference books or downloads would save me a lot of time.

Indeed my Thordarson cross reference notes the HS-3 mounts different than the Philco. If the cans are similar possibly you can move the new into the old?