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.
What thread is a an fitting?
AN fittings have straight thread, and use O-ring seals. The O-ring size is typically defined by the “AS” standard. Dash numbers are typically assigned based on the size. Boss-seal style O-rings are typically in the 900 series.
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 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.
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.
Are flare and AN fittings the same?
Technically speaking, AN fittings are manufactured to MIL-F-5509, and industrial 37-degree flare fittings are manufactured to meet SAE J514/ISO-8434-2. (Learn how to cross reference Military Specification numbers with this Air-Way tutorial.) The most notable difference between these standards are in the threads.
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.
What flare is an?
AN (Air Force – Navy Aeronautical Standard) and AND (Air Force – Navy Aeronautical Design Standard) are standards used by the U.S. Military in aviation applications. AN fittings are manufactured to meet the above standards.
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.
