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

Also known as Boss O-rings, these O-rings are made for tube fittings with a straight-thread connection. Made of Viton® fluoroelastomer, they resist a variety of chemicals, including benzene, butyl alcohol, and ethylene glycol.

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

Also known as Boss O-rings, these O-rings are made for tube fittings with a straight-thread connection. They’re made of Viton® fluoroelastomer that meets MIL-R-83248 performance standards.

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.

Also known as Boss O-rings, these O-rings are made for tube fittings with a straight-thread connection. They’re fluorosilicone, which stays flexible in temperatures as low as -65° F, so they form better seals than Viton® fluoroelastomer O-rings in cold environments.

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

Get the same chemical and heat resistance as Kalrez 4079 without the brand name. Even at 600° F, these FFKM O-rings resist a wide range of chemicals, including acetone, methyl ethyl ketone (MEK), potassium hydroxide, and most acids.

Trusted for their quality and consistency, these E0603 EPDM O-rings resist water, steam, and glycol-based fluids, including brake fluid.

Soft and pliable, these O-rings create a better seal in low-pressure applications than standard EPDM O-rings. They resist water, steam, and glycol—you can also use them outdoors.

Resistant to changing weather—from rainwater to sunlight—these neoprene O-rings are good for outdoor use.

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.