By rigorously defining the , SAE AS33514 ensures that components from different manufacturers can be confidently assembled into a safe, reliable, and leak-proof system. As the aerospace industry evolves, standards like AS33514 will remain the foundation of interoperability, safety, and quality.
A wide range of aerospace components rely on these standardized ends to function:
Always consult the latest SAE specifications and your design requirements to ensure compliance for new projects. Summary Table: SAE-AS33514 Description Fitting End, Standard Dimensions (Flareless) Focus Flareless Tube Connection & Gasket Seal Industry Aerospace, Defense, High-Pressure Hydraulics Replaces MS33514 Military Standards Status Active, but Inactive for New Designs (since 2008)
It is important for engineers and procurement officers to know that while the standard is active and supported, the since July 2008. sae-as33514
Maintaining leak-tight security under severe multi-axis vibration requires tight geometric dimensioning and tolerancing (GD&T). AS33514 imposes strict manufacturing limits:
In plain English: It’s a fitting standard designed for humans.
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: By rigorously defining the , SAE AS33514 ensures
For the latest revision of SAE-AS33514, visit SAE International’s website (SAE.org) or consult your aerospace quality department.
The standard undergoes regular five-year reviews to verify technical relevance and integrate updating manufacturing metrics: : The final military iteration issued in May 1990.
: The fitting end features a 24° internal seat designed to mate with flareless tube sleeves or compatible hose ends. trigger a costly recall
Manufacturers cannot simply claim their product "meets AS33514." They must submit samples to an accredited test laboratory (such as those meeting ISO/IEC 17025) and pass a series of destructive and non-destructive tests specified in the standard. Key qualification tests include:
For decades, the US military relied on the MS33514 blueprint to source uniform parts for defense contracts.
: The current active version , reaffirmed to meet rigorous aerospace safety protocols.
The $1B Problem of Bad Parts Every year, the global aerospace industry loses an estimated $1 billion to counterfeit electronic components. A single fake resistor, capacitor, or IC can cause an in-flight system failure, trigger a costly recall, or ground an entire fleet.
AS33514 continues to be the valid standard for maintenance, repair, and overhaul (MRO) of systems that were originally designed with it.
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