O-Ring Standard AS568A Series Sizing Chart for o-rings

Aerospace O-Ring Standard AS568A

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These o-ring sizes are standard throughout the o-ring industry and also in most military applications. The SAE published the original document that established these o-ring sizes. The AS in AS568A stands for Aerospace Standard.

We are publishing the entire Aerospace O-ring Standard AS568A chart for your convenience.

There are no standard o-ring sizes for metric o-rings. We have many sizes of metric o-rings in stock and can easily manufacture what you need if we have already been set up for that particular o-ring size. If not, we will be able to have your o-ring size manufactured but a tooling charge may apply.

If you have any questions or problems with o-ring sizes, please contact us.

[000 Series] [100 Series] [200 Series]

[300 Series] [400 Series] [900 Series]