
1.What Is a GX Aviation Connector?
A GX connector, also known as a GX aviation connector, is a type of circular connector originally designed for aviation and industrial environments. It is widely used for power and signal transmission between electronic devices, instruments, wires, and cables.
Due to its threaded metal shell and stable electrical performance, the GX connector is suitable for applications requiring vibration resistance and secure connections.


2.Key Features of GX Connectors
GX connectors are popular because of the following features:
• Threaded metal coupling for secure connection
• Stable electrical conductivity
• Optional waterproof performance
• Good resistance to vibration and mechanical stress
• Available in multiple sizes and pin configurations
Originally developed for aerospace use, GX connectors are now widely adopted in civilian and industrial applications due to their reliability and cost-effectiveness.
3.GX Connector Sizes Explained (GX12, GX16, GX20)
One of the most common questions is about GX connector sizes.
The number after “GX” refers to the thread diameter of the socket (in millimeters).
Common GX sizes include:
• GX12 – Compact size, suitable for low-current signal transmission
• GX16 – Most commonly used size, balanced between size and current capacity
• GX20 – Larger size, suitable for higher current or more pins
Although GX connectors look similar, they are not interchangeable due to different thread diameters.
4.GX Plug and Socket Types and Installation
GX connectors consist of plugs and sockets with different structural options:
• Plug types: straight plug and angled plug
• Socket types: single-thread and double-thread
• Mounting options: standard mount, flange mount, and through-hole mount
The threaded connection ensures stable mating, making GX plugs and sockets suitable for environments with movement or vibration.

5.Common Applications of GX Aviation Connectors
GX aviation connectors are widely used in:
• CCTV security systems
• Rear-view and vision camera systems
• Communication equipment
• Mechanical and industrial equipment
• Automotive electronics
• Instrumentation and control systems
Because of their durability, GX connectors are commonly found in industrial and semi-outdoor environments.
6.How to Choose the Right GX Connector (FAQ)
Q1. How do I choose the correct GX size?
Select GX12, GX16, or GX20 based on required current, pin count, and installation space.
Q2. Are GX connectors waterproof?
Some GX connectors offer waterproof designs, but specifications should be checked carefully.
Q3. Can GX connectors be used in non-aviation applications?
Yes. Today, GX connectors are widely used in industrial, automotive, and communication systems.
Q4. Are GX connectors suitable for vibration environments?
Yes. Their threaded metal housing provides reliable vibration resistance.

7.Conclusion
The GX aviation connector is a reliable circular connector solution for power and signal transmission. By understanding GX connector sizes, plug and socket types, and application scenarios, engineers and buyers can select the most suitable connector for their projects.
Elecbee is an online electronic components store specializing in GX connectors, M series connectors, and other aviation connectors. Retail and customized services are available, please feel free to contact us.
Related Products:
•GX Series Connectors
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•GX16 Series Cable Assemblies
•Circular Connectors
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