Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
techtalk:ref:tools032 [2025/10/14 17:57] – [Flare Angle Compatibility] hippysmacktechtalk:ref:tools032 [2025/10/14 18:14] (current) – [JIC] hippysmack
Line 191: Line 191:
 ====== AN and JIC Flared Fitting Threads ====== ====== AN and JIC Flared Fitting Threads ======
 ==== Flare Angle Compatibility ==== ==== Flare Angle Compatibility ====
-Flared connections generally consist of 2 parts (a flared fitting or a flared tubing end connected to another part that has the same receiving flared angle seat so that both flared portions ensure metal-to-metal contact between the mated parts to preventing leaks and maintain system pressure. ((https://kingdaflex.com/what-is-a-flare-fitting/#elementor-toc__heading-anchor-2)) \\ +  * Flared connections generally consist of 2 parts (a flared fitting or a flared tubing end connected to another part that has the same receiving flared angle seat so that both flared portions ensure metal-to-metal contact between the mated parts to preventing leaks and maintain system pressure. ((https://kingdaflex.com/what-is-a-flare-fitting/#elementor-toc__heading-anchor-2)) 
- +  * It's important that the flare angle is the same for the fitting/tubing and it's mating seat to maintain the integrity of the seal. JIC and AN fittings have 37° flare angles while SAE fittings have 45° flare angles. Fittings with different flare angles are not compatible and should not be mated. An incorrect angle prevents proper seating, leading to leaks even if other dimensions are accurate, compromising the entire hydraulic or fluid system’s integrity. 
-It's important that the flare angle is the same for the fitting/tubing and it's mating seat to maintain the integrity of the seal. JIC and AN fittings have 37° flare angles while SAE fittings have 45° flare angles. Fittings with different flare angles are not compatible and should not be mated. +  * Accurately identifying the flare angle requires a dedicated flare gauge. This tool confirms if the angle is precisely 37 or 45 degrees, eliminating guesswork. Visual inspection alone is often insufficient and can lead to costly fitting errors. ((https://kingdaflex.com/what-is-a-flare-fitting/#elementor-toc__heading-anchor-2)) 
- +  * Thread sizes have nothing to do with flare angles. While flare fittings have threads, the flare angle is independent of the thread size or pitch. Two fittings can have identical threads but different flare angles, making angle verification a distinct and essential step in proper fitting identification and selection. ((https://kingdaflex.com/what-is-a-flare-fitting/#elementor-toc__heading-anchor-2))
-Accurately identifying the flare angle requires a dedicated flare gauge. This tool confirms if the angle is precisely 37 or 45 degrees, eliminating guesswork. Visual inspection alone is often insufficient and can lead to costly fitting errors. ((https://kingdaflex.com/what-is-a-flare-fitting/#elementor-toc__heading-anchor-2)) +
- +
-Thread sizes have nothing to do with flare angles. While flare fittings have threads, the flare angle is independent of the thread size or pitch. Two fittings can have identical threads but different flare angles, making angle verification a distinct and essential step in proper fitting identification and selection. ((https://kingdaflex.com/what-is-a-flare-fitting/#elementor-toc__heading-anchor-2))+
  
 ==== AN ==== ==== AN ====
Line 214: Line 211:
 The sizes run the same as other SAE fittings (IE: SAE #4, #6, #12, etc) so they are very easy to size. \\ The sizes run the same as other SAE fittings (IE: SAE #4, #6, #12, etc) so they are very easy to size. \\
 JIC fittings are dimensionally identical to AN (Army-Navy) fittings, but are produced to less exacting tolerances and are generally less costly. ((https://en.wikipedia.org/wiki/JIC_fitting)) \\ JIC fittings are dimensionally identical to AN (Army-Navy) fittings, but are produced to less exacting tolerances and are generally less costly. ((https://en.wikipedia.org/wiki/JIC_fitting)) \\
-AE 45° 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. \\+SAE 45° 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. \\
  
   * You can measure male JIC threads by either using a caliper or simply laying a fitting across a tape measure. \\ Measure the OD of the threads and count the number of threads per inch to confirm with the chart below. \\ Thread OD will not exactly match the SAE thread size but will get you close enough if you have a JIC fitting.   * You can measure male JIC threads by either using a caliper or simply laying a fitting across a tape measure. \\ Measure the OD of the threads and count the number of threads per inch to confirm with the chart below. \\ Thread OD will not exactly match the SAE thread size but will get you close enough if you have a JIC fitting.
 +
 +==== SAE ====
 +SAE (Society of Automotive Engineers) is a global organization that develops engineering standards for the automotive industry. \\
 +Characteristics of SAE Flare Fittings are 45° flare angles (which distinguishes them from JIC fittings, which have a 37° flare angle.\\
 +Flared SAE fittings are also used in a wide range of applications including braking systems, fuel lines, hydraulic systems, refrigeration / air conditioning and plumbing systems. \\
  
 ^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&600|}}||||| ^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&600|}}|||||

Trace: • REF: Tools & Fasteners