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AEROCONTROLEX: Almost certainly the manufacturer. Aerocontrolex is a well-known brand (now part of Zodiac Aerospace/Collins) specializing in precision controls, valves, and sensing systems for aerospace.
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VALVE SOL TRANSFER SHUTOFF: The valve’s function.
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VALVE: Core product type.
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SOL: Likely stands for Solenoid (an electrically operated valve).
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TRANSFER SHUTOFF: Describes its purpose. It is a shutoff valve used for transferring a fluid (likely fuel, hydraulic fluid, or possibly oxygen/nitrogen) from one tank or line to another, and can isolate (shut off) the flow.
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N.O.: Stands for Normally Open. In its default, de-energized state (no power applied), the valve is open and allows flow. Applying power to the solenoid would close it.
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517500 103: This is the primary Part Number. The base number is
517500, and103is likely a dash number or revision suffix. This is the key identifier for sourcing, maintenance manuals, and drawings. -
SR 9328: This is probably a Shop Report number, Service Release, or Serial Number prefix. It’s a traceability or manufacturing lot code used for quality control and history.
This is a Normally Open Solenoid Shutoff Valve, designed for transfer applications, manufactured by Aerocontrolex. The critical identifying number for technical documents and procurement is 517500-103.
Typical Aerospace Use: This type of valve is commonly found in aircraft fuel systems for crossfeed, defueling, or tank transfer operations, or in other fluid management systems.
