There are several differences between "comparable" industrial AN and JIC 37° Flare Fittings flare style fittings. Some include
Sleeve 5/8 Jic 37° Flare Steel Hydraulic Fitting FasParts
Surplus Center
Hydraulic fitting - Triple-Lok® 2 - Parker Tube Fittings Division - screw-in / T / 37° flare
Melodinen automaatio riisi an fittings explained Paljon karja tulipesä
37 Degree Flare Fittings Brass/ Stainless Steel Flare Plug
Melodinen automaatio riisi an fittings explained Paljon karja tulipesä
SAE thread JIC fitting size chart Size chart, Mechanical design, Fittings
Brass Parker 37 Degree Flare & Jic Fittings at Rs 250/piece in Delhi
Melodinen automaatio riisi an fittings explained Paljon karja tulipesä
16G-16MJ : Gates Coupling, MegaCrimp Male JIC 37 Flare, -16 (1) Dash