O-ring Sizing Dimensions

Metric O-Rings Size Chart

Browse our metric o-ring size chart to view common metric o-ring sizes and order o-rings from the world’s largest inventory network. Thousands of common metric o-rings and non-standard o-rings in metric sizes are available in stock. Custom o-rings are available upon request and can typically be produced within a few weeks with no tooling fees.

Choose Marco Rubber & Plastics

For more than 40 years, Marco Rubber & Plastics has been offering custom and standard o-rings and other sealing solutions for multiple industries. With millions of products produced and shipped annually, we are the experts your organization needs to seal the success of your application. Explore standard size o-ring sizes below.

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ID (IN)
OD (IN)
CS (MM)
ID (MM)
OD (MM)
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If you'd like to discuss your specialty application with a product expert, call us today at 603-468-3600

Non-Standard Size O-ring Sizes

We have millions of o-rings in stock or they con be made to order in a few weeks without tooling fees.

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Compare O-Ring Materials

Compare o-ring compatibility and o-ring material recommendations with our o-ring material selection guide.

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Explore Groove Designs

View our o-ring groove charts for standard o-ring gland design and our o-ring groove design recommendations FAQs.

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Your Solution is Waiting

We offer a selection of specialty formulated o-rings for peak performance in high temperature applications.

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