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Coupling Fuel, Flexible Variable Cavity, Threaded Type with Ferrules, Metric
- Aerospace Standard
- MA2250
- Reaffirmed
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This Aerospace Specification establishes the requirements for a threaded flexible coupling assembly, hereafter referred to as the assembly, which utilizes ferrules or machined tube end fittings to join tubing and components in aircraft fuel, vent, or other systems. This coupling assembly is designed for use from -54 to 93 °C and at 862 kPa peak working pressure. AS coupling components referenced herein have been qualified to AS1710. Ferrule referenced herein are inch ferrules adapted to metric tubing.
Rationale
MA2250 has been reaffirmed to comply with the SAE five-year review policy.
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| TABLE 1A | Full Coupling Assembly | |
| TABLE 1B | Half Coupling Assembly | |
| TABLE 2 | Fuel System Pressure in kPa and Temperature Requirement in °C | |
| TABLE 3 | Test Specimen Lengths and End Fitting Configurations in Millimeters | |
| TABLE 4 | Tube Size and Wall Thickness | |
| TABLE 5 | Test Schedule and Sequence | |
| TABLE 6 | Defect Characteristics | |
| TABLE 7 | Classification of Defects | |
| TABLE 8 | Vibration Test Times |
Issuing Committee
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
This Committee is responsible for developing and maintaining standards for design, test, and procurement of fluid systems part standards to improve reliability and economy. Their primary focus is on AS standards development and support of military standards. The Committee also develops ISO standards in a Subcommittee Advisory Group (SCAG) to ISO/TC 20/SC 10, and SAE-MA derivatives thereof.
Structure: SAE G-3 -- Parent committee SAE G-3A -- Aerospace Couplings Subcommittee SAE G-3B -- Aerospace Fittings Subcommittee SAE G-3D -- Aerospace Hose Subcommittee SAE G-3E - Aerospace Tubing Assemblies Subcommittee U.S. SCAG to ISO/TC 20/SC 10 -- ISO standards Major projects: Support of Military Standards Reform Support of military standard conversions to MIL-PERF and MIL-DTL. Development of AS replacements for military standards designated for conversion. Establish document to list G-3 accepted replacements for replaced part standards and military back-up specifications. Development of PRI QML/QPL Development of Performance Review Institute (PRI) process for approval and surveillance of manufacturers (Qualified Manufacturer List, QML) and for approval of standard parts as qualified for use (Qualified Parts List, QPL). Development of ISO Standards, Imperial Units ISO/TC 20/SC 10 standards have typically been developed in SI units. The ISO has approved development of inch-based ISO standards to support commercial aviation. Basic design, test, and procurement specifications will be selected from military standards that are to be converted to Non-Government standard (NGS) and developed as ISO standards.Reference
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