In simple terms, the standard provides the exact dimensional specifications for the end of a fitting designed to connect to a tube without the need for "flaring" (i.e., widening) the tube’s end. Instead, it creates a high-pressure, leak-tight seal using a sleeve (or ferrule) and a gasket. By defining these precise measurements, SAE AS33514 ensures that components from different manufacturers can be used interchangeably and will perform reliably in critical systems.
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.
Even tiny microscopic scratches can cause a seal to fail under high pressure. 5. High-Pressure Applications sae-as33514
Therefore, for all modern applications,
Always purchase standards from official sources to ensure you have the correct, most up-to-date version. Distributing or using unauthorized copies is a violation of copyright law. In simple terms, the standard provides the exact
| Section | What It Contains | |---------|------------------| | | Manufacturer name, MPN (manufacturer part number), date code, lot code | | Supply chain traceability | Purchase order, supplier name, distributor chain | | Inspection findings | Visual anomalies, X-ray, decapsulation, electrical test failures | | Risk assessment | Failure mode, application criticality (flight safety vs. non-safety) | | Disposition | Scrapped, returned, reworked, or used after risk analysis |
The standard requires high concentricity (within 0.008 FIM) between the thread, seat, and pilot diameters. 2. Sealing Method Since they do not require a flare (a
The AS33514 specification covers several vital aspects of fitting design, focusing on precision engineering. 1. Fitting End Dimensions
Properly assembled AS33514 fittings perform well in high-vibration environments.
SAE standards are copyrighted documents and must be purchased from authorized distributors.
While the standard focuses on dimensions, it implicitly requires materials capable of aerospace-grade performance, such as titanium, stainless steel, or high-strength aluminum alloys, frequently processed with passivation or anodic coatings for corrosion resistance. Applications in Aerospace Systems
