The O-Ring is a simple product, but they are the backbone of hydraulic and sealing applications in industry and manufacturing. This seal, made out of solid rubber and shaped like a doughnut, blocks the passage of liquids or gases when compressed between mating surfaces. At LSI Supply, you’ll find Buna and Viton O-rings available for a wide range of industries in standard and non-standard sizes, as well as O-ring kits to keep on hand.


Buna is the most widely used O-ring material in the world; it brings good mechanical performance, low cost, and high conformity to many industrial applications. Buna O-rings also have high resistance to liquids like water and most oils, lubricants, and the fuels of many pneumatic and hydraulic systems.

The other O-ring type you’ll find in stock at LSI Supply is Viton. This is a synthetic rubber compound that, while more expensive than Buna, has a wider range of operating temperatures, better resistance to exposure to weather, UV rays, and ozone, and is more chemically resistant. It’s made for the toughest conditions!

Get A Quote From LSI Supply

The LSI Supply Catalogue has a complete range of industrial products. It’s where you can perform advanced searches by specific manufacturer’s numbers to get the exact product you need. The catalogue will be published online in the near future. In the meantime, please let us know the items you're interested in and we will send you a quote. Or, if you prefer, you can call one of our locations for help!


LSI Supply carries a wide range of bearings, transmission parts, seals, lubricants, and so much more. Our product line includes industry-leading manufacturers of premium quality products, helping us provide your business with measurable cost savings through reduced downtime, energy consumption, and maintenance repairs. With locations in major cities across Southwestern Ontario, companies trust LSI to keep our area’s industry moving!

Contact Us

Talk to the industrial supply experts at LSI Supply to get the best products for your needs. Phone or fax the location closest to you, or fill out the online form with your information and needs. We will respond to your message promptly.

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