What is a 37 degree flare fitting?

37° flare fittings perform well in severe applications where vibration, high pressure, and thermal shock exist. Standard flare fitting materials include brass, carbon steel, and stainless steel. Defined by MIL-F-18866 and SAE J514 standards, these flare fittings have been machined to have a 37° flare seating surface.

ARE AN Fittings 37 degrees?

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 AN Fittings 37 degrees?

The Joint Industries Council (JIC), sought to clear the air by standardizing the specifications on this type of fitting by creating the “JIC” fitting standard, a 37-degree fitting with a slightly lower class of thread quality than the military AN version. The SAE went on to adopt this JIC standard as well.

How is flare angle measured?

When measuring the flare angle with the seat angle gauge, use the 12 gauge. (The seat angle gauge measures the angle from the connector centerline). When the center line of the seat gauge extends parallel with the projected longitudinal axis of the coupling, then the angles of the gauge and seat match.

Is inverted flare the same as double flare?

It’s called inverted because the adapters are female and the nuts on the lines are male. DOUBLE flare has nothing to do with the types of fittings or inverted or SAE. Double flare means you make a “double fold” with the tool. This folds the raw edge of the line in like a cuff on your pants to prevent it from splitting.

What is a standard flare?

The most common flare fitting standards in use today are the 45° SAE flare, the 37° JIC flare, and the 37° AN flare. SAE 45° flare connections are commonly used in automotive applications as well as for refrigeration and air conditioning.

Is JIC same as an?

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 is the degree flare angle of an fittings?

37 degree
Fitting Flare Angle AN Aircraft Flare fittings have a 37 degree flare angle. Many industrial fittings use a 45 degree flare angle.

What is a an flare?

1 : a sudden blaze of light the flare of a match. 2 : a blaze of light used to signal, light up something, or attract attention. 3 : a device or material used to produce a flare The emergency kit included flares. 4 : a sudden outburst She displayed a flare of anger.

Are brake lines single or double flare?

All brake lines need to be double flared, due to the high hydraulic pressure. If your brakes leak or the hoses crack, it could prove to be fatal. Single flared lines are suitable for low-pressure lines in other applications, but not your vehicle’s brakes.

Can you turn a bubble flare into a double flare?

If someone wants to create a double flare, it must create a bubble flare braking line before that. The outlook of a bubble flare is more like the head of a screw. At the bottom of the bubble flare, there is a 90 degrees flare. The bubble flare brake lines are the first step in producing the double flare brake lines.

What is a 37 degree flare fitting? 37° flare fittings perform well in severe applications where vibration, high pressure, and thermal shock exist. Standard flare fitting materials include brass, carbon steel, and stainless steel. Defined by MIL-F-18866 and SAE J514 standards, these flare fittings have been machined to have a 37° flare seating surface. ARE…