1/4 inverted flare to AN fitting? Does it exist? Trans cooling line issues

The 1/4 npt fitting I have begins to thread in but gets tight so I didnt not crank on it at all. The Inverted flare fitting I had threaded right in but I am not sure what size tubing it was.

I assumed I was just looking for a 1/4 inverted flare to AN fitting.. I can't seem to find one anywhere.

Inverted flare fittings are measured different than NPT. OD vs. ID. You won't find a 1/4" inverted flare to AN. Bring your fitting that fits to the hardware store like Blown mentions and match it up and take note of the size.