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Coupling Assembly, Threadless, Flexible, Self-Locking, Fixed Cavity, High Conductivity, Self-Bonding, Part Specification
- Aerospace Standard
- AS7510A
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Aerospace Standard (AS) defines the requirements for a threadless, flexible, high conductive, self-bonding coupling assembly which, when installed on defined ferrules, provides a flexible connection for joining ducting and components in pressurized fluid systems. The assembled coupling is designed to provide interchangeability of parts and components between qualified manufacturers for use from -65 to +265 °F at 130 psi nominal operating pressures and for the service life of the aircraft system.
FAR 23.954, FAR 25.603, FAR 25.605, FAR 25.609, FAR 25.613, FAR 25.901, FAR 25.954, and FAR 25.981 certification requirements have identified the need for high current capable flexible fluid assembled couplings. The coupling assembly does not require inspection or maintenance to remain current capable for the life of the aircraft.
This specification provides two test philosophies necessary for low pressure couplings:
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1
Electromagnetic Effects/Lightning testing of assembled couplings to demonstrate both lightning conducted current and electrostatic capabilities are retained through simulated service life test sequences to meet commercial airplane FAR 25.981 certification requirements.
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2
Grouping and goal posting of coupling test specimens based on size and material similarities.
The assembled coupling’s intended application and usage is for, but not limited to, commercial and military aircraft. Components defined herein and qualified to the performance capabilities and regulatory compliance requirements will support their use in fuel and other fluid conveyance systems.
This specification requires manufacturers to be qualified and accredited to Performance Review Institute (PRI)/National Aerospace and Defense Contractors Accreditation Program (Nadcap) requirements.
Rationale
Administrative changes and updated 4.5.6, 4.5.13, 4.5.14, and 4.5.15 to support broader aircraft usage and applicability. Wide Span Random Vibration fixture redesigned based on aforementioned changes.
Recommended Content
Topic
Data Sets - Support Documents
Title | Description | Download |
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Table 2 | FAR method of compliance reference | |
Table 3 | Coupling physical requirements | |
Table 4 | Coupling Components | |
Unnamed Dataset 9 | ||
Table 5 | Component production acceptance tests | |
Unnamed Dataset 11 | ||
Unnamed Dataset 12 | ||
Table 6 | Qualification performance testing and sequence | |
Table 7 | Life cycle test sequence detail | |
Table 8 | Non-life cycle test sequence detail | |
Table 9 | Random and windmilling vibration test sequence detail | |
Table 10 | Static load capability test group detail | |
Table 11 | Dynamic shear test sequence | |
Table 12 | Pressure impulse fatigue test sequence | |
Table 13 | Sinusoidal resonance dwell vibration levels | |
Table 14 | Sinusoidal resonance dwell times | |
Table 15 | Static tensile limit and ultimate load requirements | |
Table 16 | Static shear limit and ultimate loads and pressures |
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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