VINTAGE brass fitting & hose couplers PLEASE LOOK!

enginedoc12 said
That's not an AN-10 folitting. It is a 45° flare fitting. They do not interchange. The difference is noted in where the threads start. If there is a space from the flare to the beginning thread (like in the pic) then it a 45°

Yes, I know AN is a 37 degree.
Oddly enough, the AN10 hose end you see was screwed onto the 90 degree fitting you see!
Here's a vintage pic, grainy, but there it was.
Used on a low pressure rear axle cooler.
fitting as seen on the #88 daytona.JPG