What is the AS568 O Ring Size Chart for Aerospace?

13 Aug.,2025

 

When it comes to the aerospace industry, precision and reliability are paramount, particularly in the components used to ensure safety and performance. One such critical component is the O-ring, specifically those classified under the AS568 size standard. Understanding the AS568 O Ring Size Chart is essential for engineers and manufacturers who work in aerospace applications.

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The AS568 O Ring Standard was established by the Aerospace Industry Association to define various sizes of O-rings for different applications, ensuring compatibility and performance across various aerospace systems. The chart provides a comprehensive guide that lists numerous O-ring sizes, specifying dimensions such as inner diameter, outer diameter, and cross-section thickness. This standardization is vital, particularly in an industry where even the slightest imperfection can lead to failure.

One of the primary reasons the AS568 O Ring Size Chart is crucial in aerospace applications is that O-rings are often tasked with sealing fluids and gases under extreme conditions, including high pressures and variable temperatures. The utilization of the AS568 O Ring ensures that engineers can select the appropriate size for a specific application, reducing the risk of leaks or malfunctions that could compromise safety.

The AS568 O Ring Size Chart includes both inch and metric sizes, making it accessible to a wide range of users worldwide. Each entry in the chart corresponds to a specific dash number, providing a convenient reference point for selecting the correct O-ring size. For example, an O-ring with a dash number of -010 will have an inner diameter of 0.070 inches, an outer diameter of 0.097 inches, and a cross-section of 0.014 inches. This level of precision is what makes the AS568 O Ring a preferred choice among aerospace engineers.

Moreover, advancements in material science have led to the development of O-rings that can endure extreme environments found in aerospace applications. Materials such as fluorocarbon, silicone, and nitrile rubber have become commonplace, providing enhanced resistance to heat, chemicals, and wear. The AS568 O Ring Size Chart, therefore, doesn't merely assist in size selection but also allows engineers to choose materials that best suit their specific operational requirements.

In the aerospace sector, adherence to standards like AS568 is not just a suggestion; it's a critical requirement. Regulatory bodies often mandate compliance with these specifications to ensure safety and reliability across aerospace components. Consequently, the AS568 O Ring and its accompanying size chart are indispensable tools for engineers designing components for jet engines, fuel systems, and hydraulic systems, among others.

As industries evolve, so do the standards that govern them. It’s important to stay informed on any updates or changes to the AS568 O Ring Size Chart to ensure compliance with the latest aerospace regulations. Always refer to the most recent documentation to ensure that the O-rings selected are not only the correct size but also the right type for the job at hand.

In conclusion, the AS568 O Ring Size Chart is an essential resource for professionals within the aerospace sector. By providing precise measurements and compatibility guidelines, it allows for the reliable selection of O-rings that are critical to aerospace applications. Whether you’re designing new systems or maintaining existing ones, having access to this chart will help you meet industry standards and ensure the longevity and safety of your projects.

If you’re looking to implement the AS568 O Ring specifications in your projects or need assistance in selecting the right O-ring sizes for your aerospace applications, reach out to our team of experts today. Let us help you navigate the complexities of aerospace standards with confidence!

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