Note that AN threads are different for bolts and fittings. In bolts the number refers to the diameter of the bolt whereas in a fitting it refers to the OD of the tube and thereby have different threads. For example, AN6 bolt has a 3⁄8-24 thread whereas an -6 AN fitting has a 9⁄16-18 thread.
How does a an fitting work?
AN fittings feature a special 37 degree flare to create a metal to metal seal when they are connected, and are NOT the same as flare fittings you find at the hardware store. Those fittings have a 45 degree flare and WILL NOT WORK WITH AN! Don’t use hardware store parts to plumb your next project!
ARE AN and JIC the same?
JIC fittings are dimensionally identical to AN (Army-Navy) fittings, but are produced to less exacting tolerances and are generally less costly. SAE 45-degree flare fittings are similar in appearance, but are not interchangeable, though dash sizes 2, 3, 4, 5, 8, 10, 14, and 16 share the same thread size.
What does an stand for in AN fittings?
Historical Context of the AN Fitting
AN stands for Air Force – Navy Aeronautical Design Standards (also known as “Army Navy”) that are used in U.S. Military aviation applications. These fittings are made to meet strict performance standards related to the aeronautical industry.
What size is a hose fitting?
In the US, hoses are normally supplied with a 3/4″ GHT fitting on the bib end of the hose so that it can be screwed straight onto the bib. Screw a 3/4 -inch brass or plastic fitting onto the tap.
ARE AN fittings 37 degree?
This fitting design was the forerunner of the current AN and SAE 37° flare fittings. The U.S. Air Force, with help from Wright Patterson Air Force base, developed a fitting with 37° flare angle, before WWII, which became known as the “AN” fitting.
Why are my AN fittings leaking?
If you are leaking out of the back of the nut or through the nut pin hole on the hose end Well, someone has over tightened the hose end and distorted the seat area. The only fix for it is to install a new fitting/hose end or try a conical seal. They can be found in both aluminum or copper.
How do I choose an fitting?
Selecting Your Fittings
Consider the Tubing Used. Barbed fittings work best with flexible tubing such as silicone or PharMed®. Determine Material Compatibility. Fluids that are incompatible with fitting material may cause leakage or system damage. Check Temperature and Pressure Conditions.
What is 6 an fitting?
Where every dash number is 1/16 of an inch an AN6 fitting would be equivalent to 6/16″ or 3/8″ Fitting size. AN8 8/16″ or 1/2″ for example.
What does JIC stand for in fittings?
JIC (or Joint Industry Council) fittings, defined by SAE J514, are compression fittings machined with a 37 degree flare seating surface and parallel threads. They are commonly manufactured in nickel alloys, brass, carbon & stainless steel.
