AS33514 does not exist in isolation; it is part of a broader family of fitting and tube standards. It's vital to understand its relationship with others:
While the full SAE AS33514 document is the definitive source, its core focus is on standardizing the geometry of the fitting end to ensure proper sealing and interchangeability. The standard defines critical features such as:
The standard establishes precise dimensional data and qualification requirements for fitting ends used in fluid systems. It is heavily utilized in military and defense applications and was originally adapted directly from the U.S. military specification Primary Application: Flareless tube connections and gasket seals. Current Status: As of July 2008, this standard is inactive for new designs Replacement Standards:
SAE AS33514 provides standard dimensions for a flareless tube connection that uses a gasket seal. SAE AS5863 specifically defines the design standard for a 24-degree cone flareless fitting end used for fluid connection purposes. Both standards define different types of flareless connections. sae-as33514
High-pressure fluid lines require precise, smooth surfaces to prevent leak paths. The standard defines requirements for surface finish (smoothness) and concentricity (alignment of the fitting components), which are essential for mitigating stress concentrations that can lead to failure. Applications of SAE-AS33514
Ensuring secure connections for flight control actuators.
The standard mandates (controlled root radius) per SAE-AS8879, which offer superior fatigue life compared to standard UNF threads. This is vital in high-vibration aircraft environments. AS33514 does not exist in isolation; it is
of the dimensions for specific tube sizes defined in this standard?
Since they do not require a flare (a 37-degree cone at the end of the tube), they are often easier to install in confined, hard-to-reach areas.
In fluid systems, tubes carry liquids or gases under massive pressure. Traditional setups use a "flared" tube, meaning the end of the metal tube is stretched into a funnel shape. It is heavily utilized in military and defense
The standard stays active through regular updates, such as the , to confirm it fits modern manufacturing needs. How Flareless Connections Work
In the high-stakes world of aerospace engineering, is more than just a technical code—it’s the silent guardian of a plane’s "circulatory system." This Aerospace Standard defines the precise dimensions for flareless tube connection fitting ends, ensuring that hydraulic lines can withstand immense pressure without leaking.