For a better seal in low-pressure applications, such as hydraulic return lines and oil drain plugs, these O-rings are softer than standard Buna-N O-rings.

When you need an O-ring that’s not an industry standard size, we can make one to fit your requirements. These resist grease, hydraulic oils, and motor oil.

A slick surface treatment makes these O-rings easy to seat without tearing or rolling. The lack of friction also helps create a long-lasting seal in dynamic applications, no lubrication required.

FDA compliant for direct contact with food, these Buna-N O-rings create a strong seal in food and beverage lines.

These Buna-N O-rings are made and bagged in an ISO Class 7 (Fed. Std. 10,000) clean room.

Made of silver-plated 321 stainless steel, these O-rings can handle extreme pressure up to 11,000 psi. They resist grease, hydraulic oils, mineral oil, motor oil, and synthetic lubricants.

These O-rings are harder and stronger than standard polyurethane O-rings to handle high-pressure applications.

A step up from Buna-N, these HNBR O-rings contain extra hydrogen to better resist chemicals, weather, and abrasion.

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.

Tested to meet ASTM E595, a standard used by NASA, these O-rings give off almost no volatile emissions that could damage sensitive electronics, even in a vacuum. They’re softer than standard Viton®, so they better conform to irregular surfaces.

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.

Heat treated, cleaned, and double-bagged in an ISO Class 5 clean room, these O-rings come ready for use in high-vacuum systems.

Spot when O-rings aren’t seated properly or identify sizes at a glance—these O-rings come in high-contrast colors.

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 and bagged in an ISO Class 7 clean room, these O-rings won’t shed particles.

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 our hardest Viton® fluoroelastomer, these O-rings can handle sudden pressure changes that would cause softer O-rings to crack or deform.

Also known as Boss O-rings, these O-rings are used in tube fittings with a straight-thread connection. Made of PTFE, they withstand extreme temperatures and harsh chemicals such as fluorinated solvents, ethanol, and acetone.

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

Able to withstand the widest range of chemicals of any Kalrez O-ring, these Kalrez 6375 O-rings are often used for chemical processing and applications involving steam.

Create seals for use in semiconductor manufacturing, food processing, and other highly controlled applications. More pure than Kalrez 4079 O-rings, these Kalrez 6230 O-rings won’t leach contaminants into your line.

Seal lines and valves in HVAC systems, freezers, and other cold applications exposed to chemicals. Made with an FEP casing, these O-rings are protected against chemicals such as methanol and boric acid.

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.

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.

When you need an O-ring that’s not an industry standard size, we can make one to fit your requirements.

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.

Softer than standard silicone O-rings, these O-rings form a better seal in enclosures, reservoirs, and other low-pressure equipment. They withstand temperatures up to 400° F or higher. Also known as Boss O-rings, they’re made for tube fittings with a straight-thread connection.

Made and bagged in an ISO Class 7 (Fed. Std. Class 10,000) clean room, these are the highest purity high-temperature O-rings we offer.

If these O-rings deteriorate and fall in your line, they’ll be caught by metal- and X-ray-detection systems.

Made of EPDM, these O-rings have excellent resistance to water, steam, and glycol-based fluids, including brake fluid.

Use these O-rings with metric sanitary fittings, which are also called aseptic fittings. Made of EPDM, they resist water, steam, ethanol, and ethylene glycol.

Harder than standard EPDM O-rings, these O-rings are more resistant to abrasion and wear.

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.

Also known as boss O-rings, these neoprene O-rings seal straight-thread fittings in valve housings, outdoor enclosures, and saltwater applications.

This cord stock is softer and creates a better seal in low-pressure applications than standard Buna-N cord stock.

Made of FDA-listed material for use with food and beverage, this cord stock resists animal and vegetable oils, citric acid, sodium bicarbonate, and grease.

Harder than standard Viton® fluoroelastomer cord stock for better wear resistance.

Create seals for equipment used in food, beverage, or pharmaceutical lines—this cord stock is FDA compliant for direct contact with food. Made of Viton® fluoroelastomer, it resists benzene, ethylene glycol, and other harsh chemicals.

Made from Santoprene, this cord stock combines the flexibility of rubber with the durability of plastic. It holds up to weather and harsh chemicals, such as acetic acid and potassium hydroxide, without cracking or tearing.

Use this cord stock to create O-rings for high-temperature applications up to 400° F.

Create round-profile O-rings for sealing applications near ovens and other hot areas in your food plant.

Often used in marine environments, this neoprene cord stock resists moisture, salt water, and UV rays.

Keep a range of sizes on hand so that you always have the O-ring you need. Also known as boss O-rings, the O-rings in these assortments are sized to fit straight threaded fittings to prevent leaks.

Softer than standard Buna-N O-rings for a better seal in low-pressure applications.

Also known as Boss O-rings, these hard Viton® fluoroelastomer O-rings are for use in tube fittings with a straight-thread connection. They offer excellent resistance to wear.

These assortments contain a mix of Buna-N O-rings that resist oil and Viton® fluoroelastomer O-rings that resist boric acid, fuels, and transmission fluid.

Able to withstand heat up to 450° F, these O-rings maintain a strong seal even when the temperature rises.

Keep a variety of sizes handy so that you always have the O-ring you need. The HNBR O-rings in these assortments are a step up from Buna-N O-rings—they contain extra hydrogen to better resist chemicals, weather, and abrasion.