Repaired an AC I found at the dump but it didn't have any of the exhaust parts. I found this flange and remixed it to fit my AC without spending a bunch of money on the LG parts. May fit other models, mine is an LP1213GXR
The outside diameter of the lower pipe is 130 mm which slides right into the exhaust port snugly if your locking tabs are broken off like mine were.
The threaded side will fit a 5.9" (15 CM) AC exhaust hose.
The included STL is for COUNTER-CLOCKWISE threaded pipe.
If you have a clockwise threaded tube, mirror the STL in your slicer along the X axis to flip the threads for your needs.
I used 15% triangle support with 3 gradual support steps to save on material.