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Fittings, 24° Cone Flareless, Fluid Connection, 3000 psi
- Aerospace Standard
- AS18280G
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Aerospace Standard (AS) establishes the requirements for 24° cone flareless fluid connection fittings and nuts, internally or externally swaged, preset, or welded sleeves for use in aircraft fluid systems at nominal operating pressures up to and including 3000 psi.
Rationale
Revision G clarifies: defect descriptions for aluminum material finishes and test requirements for high purity aluminum (HPA) coating to eliminate redundancy with reference documents; qualification approval between 4130 and 15-5PH materials; equivalent materials for PRI QPL lists; pressure rating for size 16 aluminum tubing; provided reference for defect limits on unmachined surfaces. Lists of flareless fitting end standards is made consistent throughout. Adds single point machining requirement on flareless ends. Adds 12 month periodic test interval. Provides lubrication allowance for pneumatic test of similar materials.
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Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Unnamed Dataset 5 | ||
| Unnamed Dataset 6 | ||
| Table 1 | Materials | |
| Table 2 | Fitting material, operating pressure, and flexure test stress for flareless fittings with bite type sleeves or internally swaged sleeves with machined acorn ends with 304 1/8 hard corrosion resistant steel tubing (see ) | |
| Table 3 | Fitting material, operating pressure, and flexure test stress for aluminum flareless fittings with machined acorn ends with aluminum alloy tubing (see and ) | |
| Table 4 | Tubing wall thickness, operating pressure, and flexure test stress for steel or titanium flareless fittings with type 21-6-9 corrosion resistant steel tubing | |
| Table 5 | Tubing wall thickness, operating pressure, and flexure test stress for titanium flareless fittings with type 3.0Al 2.5V titanium alloy tubing | |
| Table 6 | Minimum joint strength of flareless tube end attachment fittings, 304 1/8 hard corrosion resistant steel tubing | |
| Table 7 | Test samples for qualification inspection and periodic control tests | |
| Table 8 | Fitting assembly torque values | |
| Unnamed Dataset 15 | ||
| Table 9A | Classification of characteristics | |
| Table 9B | Classes, characteristics, and quality parameters, sampling inspection | |
| Table 9C | Sampling inspection, tables for isolated lot applications | |
| Table 9C | Sampling inspection, tables for isolated lot applications | |
| Table 9C | Sampling inspection, tables for isolated lot applications | |
| Table 10 | Quality conformance inspection | |
| Table 11 | Periodic control test requirements |
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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