Establishes uniform dimensions for the "fitting end" (the portion of the fitting that mates with a tube or another component) to ensure interchangeability and reliable sealing without the need for flaring the tube.
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. sae-as33514
Never attempt to mate an SAE-AS33514 flareless fitting with an SAE-AS4395 flared component. The sealing geometry is entirely different, leading to immediate leakage. Establishes uniform dimensions for the "fitting end" (the
Standard configuration highlighting exact concentricity, thread relief parameters, and squareness to the axis. The sealing geometry is entirely different, leading to
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❌ “Only big OEMs need to worry about it.” ✅ Small machine shops and component resellers are often the first to see suspicious parts. Your report might stop a counterfeit from reaching an engine controller.
The standard has a clear lineage, simplifying sourcing and procurement for engineers. The "MS" prefix (Military Standard) was used for the original , which SAE has since replaced with SAE-AS33514 .