O-Ring Size Standards

O-Rings are the most common types of seals used in the industry for a variety of applications by companies around the world. There are unlimited numbers of possible sizes for an O-Ring. Because of their popularity, O-Rings come in many standard sizes. The pages we have listed show some of the O-Rings we believe are the most commonly used by our customers in the United States and other countries.

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TF 800 856 1344 

O 713 699 1344

F  713 699 1349

518 Rankin Circle North

Houston, Texas 77073

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Manufacturing Office 

13625 Rankin Park Circle

Houston, Texas 77073

O 713 699 1344

Canada Office 

9814-44 Avenue NW

Edmonton, AB Canada


O 780 434 1111