Made of Buna-N, these O-rings resist grease, hydraulic oil, and motor oil—plus mild chemicals and water.

Harder than standard Buna-N O-rings, these 90A durometer O-rings are more durable and wear resistant.

With four points of contact for a strong seal, these X-profile O-rings are often used in dynamic applications, such as on pistons and rotating shafts. Also known as Quattro seals and X-rings, they resist rolling and twisting better than round- and square-profile O-rings.

More abrasion resistant than Buna-N O-rings, these also resist mineral oil and motor oil.

These Viton® fluoroelastomer O-rings resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol.

With a 90A durometer, these O-rings are harder and more wear-resistant than standard Viton® fluoroelastomer O-rings. They hold up to the high pressures in fuel injectors and heavy duty hydraulic cylinders.

Also known as Quattro Seals and X-rings, these X-profile O-rings have four points of contact for a better seal in moving parts than round-profile O-rings. Since they require less compression to make a seal, they also last longer.

Made for demanding applications, these O-rings hold up to constant motion, repeated compression, and extreme temperatures. They’re often used for centrifugal pumps and high-pressure hydraulic valves in chemical processing systems.

Made of Viton® fluoroelastomer, these O-rings meet MIL-R-83248 standards. They stay strong when used with chemicals such as benzene, butyl alcohol, and ethylene glycol.

Made of Kalrez 4079, these O-rings combine the chemical resistance of PTFE with the springy softness of Viton® fluoroelastomer.

Create seals in temperatures as low as -65° F. Made of fluorosilicone, these O-rings have the same chemical resistance as Viton® fluoroelastomer O-rings, but they’re more flexible in the cold.

Use these O-rings in temperatures up to 400° F. Made of Parker S1138 silicone, they’re pure enough for food or pharmaceutical applications—they’re USP VI certified.