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The O-ring, introduced in the late 19th century and officially patented in the U.S. in the 1930s, immediately sparked interest in the potential of its design. Soon, designers incorporated the O-ring into devices such as engines, pumps, and pipe joints.
Over a century later, the O-ring is now the most commonly used seal in the world. The core form and function of the O-ring have remained the same, but technological developments have improved O-ring seal applications and options. There are different material and size options to suit any device’s specifications.
At Wyatt Seal, we offer a wide range of material options and custom sealing solutions for any application.
An O-ring’s reliability is directly related to proper installation and appropriately chosen materials. When selecting the O-ring that will suit your project’s needs, it is important to consult professionals and explore all material options.
Often, O-ring seals are color-coded to correspond to their material. Color coding is available and can simplify the installation process, but you should never assume that color tells you the material of a previously existing O-ring.
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Since O-ring sizing requires precision, O-rings have two identifying measurements: the inside diameter (ID) and the cross-section (CS). The inside diameter is found by measuring the inside of the O-ring, from inside wall to inside wall. The cross-section measurement is found by measuring the width of one side of the O-ring. This could also be defined as the height of the O-ring when it lies on a flat surface.
Check out our O-ring Size Chart for more information.
For nearly 50 years, our customers have trusted Wyatt seal to find solutions for even the most complex sealing conditions.
We're proudly aligned with some of the largest seal manufacturers in the world. offering our customers access to thousands of manufactured seals, gaskets, O-rings and many other speciality items.
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