Not Ranked
37 degree JIC (Joint Industrial Council) is the standard flare fitting for the military and all Earls, Aeroquip, Russel, etc.
BE CAREFUL
SAE (Society of Automotive Engineers) and JIC are NOT interchangable. The threads are the same on some sizes (dash 3) and different on others (dash 12).
We don't use the SAE stuff.
David
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