What does JIC fitting stand for?
Joint Industry Council
JIC fittings, defined by the SAE J514 and MIL-DTL-18866 standards, are a type of flare fitting machined with a 37-degree flare seating surface. JIC (Joint Industry Council) fittings are widely used in fuel delivery and fluid power applications, especially where high pressure (up to 10,000 psi) is involved.
JIC fittings are “widely used in fuel delivery and fluid power applications, especially where high pressure (up to 10,000 psi) is involved.” The JIC fitting uses its flared seating surface to seal, instead of an o-ring that could corrode or the old-tapered threads of NPTF fittings. This means that they can be re-used, and disconnected & reconnected repeatedly with little or no deformation and hold a high pressure seal. This is very useful in hydraulic applications where equipment is frequently being changed out or on testing equipment. The sizes run the same as other SAE fittings (IE: SAE #4, #6, #12, etc) so they are very easy to size.
