As mentioned earlier, AN fittings are designed to fit a specific hose size. It’s important to choose the correct AN size fitting for your specific application to ensure a proper and secure connection. Application Requirements AN fittings are available in a variety of shapes and designs, including straight, 45-degree, and 90-degree elbows, and tees. You can use these fittings in a variety of applications, including: Fuel Lines JIC stands for the Joint Industries Council, which first standardized industrial use fittings. These compression couplings have a 37° flared seat on the male and female threaded connections. What does AN stand for? Fittings are a little different and slightly more complex. In the part number 10343 -8 -6, for example, -8 is the size of the fitting end connection, and -6 is the hose size. Power steering systems use hydraulic pressure to make steering easier, especially at low speeds. AN fittings are commonly used in power steering systems, as they are designed to handle high-pressure hydraulic fluids and provide a leak-free connection. Brake Systems

JIC stands for the Joint Industries Council, and AN stands for Air Force – Navy Aeronautical Design Standards. Army-Navy fittings first made their appearance around the second world war and have been designed to be used in U.S. military aviation applications. In contrast, JIC fittings are used primarily in industries such as agriculture; these are now often referred to as SAE J514 Flare fittings. We look at the differences between the two and how you can choose the best fittings for your application. Table of contentsAN fittings are made to a much higher standard than JIC/SAE fittings. Also, AN fittings are much more expensive. Using these interchangeably is not recommended. What are AN fittings used for? The standard JIC and AN conical seat angle is 37°. There is another standard JIC-45 which uses 45° conical seats, so be careful and make sure all the conical seats in your system are compatible. Threads ¶

Brake systems are critical components in any vehicle, providing the necessary stopping power. AN fittings are often used in high-performance brake systems, as they can handle high-pressure brake fluid and provide a leak-free connection. Advantages of Using AN Fittings So remember: dash size is the size of hose, tube or fittings expressed in sixteenths of an inch. Hoses are measured by inside diameter, and tubes are measured in outside diameter. Oil coolers are used to keep engine oil at the proper temperature, which helps to extend the life of the engine. AN fittings are often used in oil cooling systems, as they are designed to handle high-pressure oil and provide a leak-free connection. Power Steering Systems AN stands for Air Force – Navy Aeronautical Design Standards, and it is used for fittings. Can I combine AN and JIC couplings? The number represents the OD (Outside Diameter) of the tube the fitting was designed to fit in the old AN specifications. The number represents the OD as multiples of 1/16”. Therefore, a -10 fitting was originally designed to fit an solid tube with an OD of 10 * 1/16″ = ⅝″ (~16mm). Conical Seat Angle ¶

A new standard was introduced to clean up the confusion called the JIC (Joint Industries Council) fitting standard. These JIC hydraulic fittings have a slightly lower class of thread quality and are considerably less expensive than their AN counterparts. AN fitting sizes and JIC fitting sizes are comparable. JIC fittings are now defined by standard SAE J514 of the Society of Automotive Engineers (SAE). Differences between AN and JIC fittings The terms AN and JIC are used interchangeably in aftermarket automotive hydraulic systems. Mainly the system is used for fuel and oil systems. Occasionally it is also used for coolant systems, but it is pretty rare. What we’re after in reality are AN fittings, because they offer the best dimensional tolerances, and sealing surface finishes. Not all fittings that look the same, are the same! In Motorsport ¶ AN and JIC (SAE J514 standard) both have a 37° flare connection on the male and female sides of the fitting and straight threads. A seal is achieved by threading in the JIC male flared connection with the female coned connection. 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 [3] whereas an -6 AN fitting has a 9⁄ 16-18 thread. [4]

Many brands offer AN fittings, and it’s important to choose a reputable brand that offers high-quality products. Reputable brands are more likely to offer fittings that meet your specific requirements and are designed to last. By understanding the history of AN fittings, their sizes, types, and applications, and choosing the right fittings for your specific needs, you can ensure that your system runs smoothly and safely. Army-Navy fittings are used extensively in the U.S. military, military contractors, general aviation, and commercial aviation and are specifically designed to a high standard for this purpose. What are JIC fittings used for? SAE fittings are commonly used in traditional automotive applications, such as in brake and fuel systems. They can also be found in older vehicles and in some industrial applications that do not require the high performance capabilities of AN fittings. AN fittings are essential components in various industries, especially in automotive and aerospace. They are designed to provide flexible, leak-free connections, and are available in a range of sizes and designs.These sizes refer to the diameter of the fitting in 1/16th inch increments, for example AN-4 is 1/4 inch in diameter. These fittings are commonly used in automotive and aerospace applications for fluid transfer such as oil, fuel, and coolant systems. AN Fitting Types and Applications In this article, we’ll discuss the history, sizes, types, and applications of AN fittings, as well as provide a guide on how to choose the right fittings for your needs. Read on to discover the world of AN fittings and how they can benefit your specific commercial application. The History of AN Fittings With proper installation and maintenance, AN fittings provide a reliable and long-lasting solution for fluid transfer in automotive, aerospace, and industrial applications. What are SAE Fittings?

Did you notice that for hose part numbers, we talked about inside diameter, and for tube part numbers, we referred to an outside diameter? This is not an accident. Hoses are measured by inside diameter, and tubes are measured by outside diameter, which is how they are differentiated from each other. Most people think about hoses as being flexible and tubes as being rigid, but in fact, there are some very rigid hoses, and some very flexible tubes. For example, nylon tubing is very flexible, and flexible metal hoses are (relatively) very rigid.Army Navy couplings are used primarily for military aviation systems. As such, these have been produced to the highest possible specs and performance standards. During the second part of the last century confusion sparked between AN fittings and those used in industrial applications, the 37° flare fitting. All these fittings claimed to be made to the AN standards, although they usually were not. This created not only confusion but also a potentially dangerous situation. AN fittings are made of high-quality materials, such as aluminum or stainless steel, which makes them highly durable and resistant to wear and tear. This is particularly important in applications where the fittings will be exposed to harsh conditions, such as high pressures, temperatures, and chemicals. How are AN fittings installed? Then JIC (The Joint Industry Council) came along and use the AN standard as a basis for their own standard. They essentially just ratified the parts to reduce the part count. The tolerances allowed are more lenient for JIC fittings too, compared to AN fittings.