Also known as loaded-lip seals and PolyPaks, an O-ring secures these U-cups to the rod or piston for better sealing performance at lower pressures than unsupported U-cup seals.

These U-cup seals create less friction than O-ring-loaded U-cups, so they wear more slowly. Also known as lip seals, U-cups have a sealing lip on both the inside and outside edges, so they can be used for rod and piston sealing.

These seals have a beveled lip that optimizes contact against the rod, while a secondary lip keeps the seal stable.

The slippery PTFE surface of these seals allows rod motion up to seven times faster than our other rod seals.

PTFE gives these seals a slippery surface that facilitates rod speeds over seven times faster than our other buffering seals. They're rated for pressure up to 5,000 psi.

A square O-ring prevents these piston seals from rocking in the groove.

These Buna-N seals are reinforced with cotton thread for strength.

A two-lip design means that these wipers also function as a rod seal.

These wipers seal against the cylinder housing to prevent contaminants from entering between the outside edge and the housing.

Made from PTFE, these wear rings have a slippery surface that allows rods to move at least three times faster than nylon wear rings.

These seals have a metal case that creates a tight seal when mating with smooth surfaces.

Also known as oil seals, use these to retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. A spring secures the lip against the shaft, preventing messy leaks. Press-fit seals into the bore around the shaft.

Also known as grease seals, these are designed to retain thick lubricant at low pressure. They have a light grip on the shaft that creates less friction than spring-loaded seals.

A slippery PTFE surface allows these seals to function at speeds at least 25% faster than other rotary shaft seals.

These seals are fluoroelastomer, so they have excellent chemical resistance and withstand temperatures up to 390° F.

With a smaller seal OD than standards seals, these seals have an extended spring that accommodates variations in seal cavity length.

Multiple internal springs ensure these seals keep the sealing surfaces in contact in demanding applications, such as agricultural, chemical, and mining pumps.

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

These hard O-rings offer better wear resistance 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.

Also known as Quattro Seals and X-rings, these X-profile O-rings have four points of contact for a better seal in dynamic applications than round-profile O-rings. They also require less compression to make a seal, so they offer a longer service life.

Choose these O-rings for their adherence to strict military standards for material and construction.

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.

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 hard O-rings are for use in tube fittings with a straight-thread connection.

These hard O-rings offer better wear resistance than standard Viton® fluoroelastomer O-rings.

With flat edges on all four sides, these square-profile O-rings cover more surface than round-profile O-rings for a better seal in static applications, such as hose, pipe, and faucet connections.

In addition to resisting chemicals, such as benzene, butyl alcohol, and ethylene glycol, these Viton® fluoroelastomer ETP O-rings resist steam.

Also known as Boss O-rings, these O-rings are for use in tube fittings with a straight-thread connection. They meet MIL-R-83248.

These are the highest purity chemical-resistant O-rings we offer. They are made and bagged in an ISO Class 7 and Fed. Spec. Class 10,000 clean room, plus they’re USP VI certified; not for use in medical applications.

Made and bagged in an ISO Class 7 and Fed. Spec. Class 10,000 clean room.

Pair these O-rings with metric sanitary fittings, which are commonly known as aseptic fittings. Made of PTFE, they’re rigid with a slippery surface and resist harsh chemicals such as acetone, fluorinated solvents, methanol, and boric acid.

The FEP casing on these O-rings provides the same level of resistance to harsh chemicals as PTFE O-rings, but the core material is soft to make these O-rings more compressible.

These fluorosilicone O-rings remain flexible at temperatures as low as -60° F. They resist ethanol, ethylene glycol, and isopropyl alcohol.

Inherently softer and more compressible than PTFE O-rings, these Kalrez 4079 O-rings have comparable chemical resistance.

Also known as Boss O-rings, these Kalrez 4079 O-rings are for use in tube fittings with a straight-thread connection. They’re inherently softer and more compressible than PTFE O-rings with comparable chemical resistance.

Kalrez 6375 O-rings are preferred over Kalrez 4079 for chemical-processing environments and applications involving steam.

If these O-rings deteriorate, they can be picked up by metal detection systems.

These silicone O-rings withstand temperatures up to 400° F or 450° F.

When you need an O-ring that’s not an industry standard size, we can make one to fit your requirements. These O-rings withstand temperatures up to 450° F.

If these O-rings deteriorate, they can be picked up by metal detection systems.

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

Also known as Boss O-rings, these O-rings are for use in tube fittings with a straight-thread connection.

Also known as Boss O-rings, these O-rings are for use in tube fittings with a straight-thread connection.

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.

Made of Buna-N, these backup rings resist grease, petroleum fluids, and motor oil.

Harder than standard Buna-N cord stock for better wear resistance.

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

This cord stock is made of FDA-listed material for use with food and beverage. It resists citric acid, diluted salt solutions, glycerin, and sodium bicarbonate.

The brown color of this cord stock makes it easy to identify.

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

Use neoprene cord stock to make O-rings for applications that come into contact with water.

In addition to water and steam, this EPDM cord stock resists diluted salt solutions, ethanol, and isopropyl alcohol.

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.

Rigid and hard with a slippery surface, these O-rings resist harsh chemicals, such as acetone, fluorinated solvents, methanol, and boric nitric, and sulfonic acids.

All of the O-rings in these assortments are made of Buna-N. They resist animal, vegetable, and motor oils.

Also known as Boss O-rings, these hard O-rings are for use in tube fittings with a straight-thread connection.

These O-rings have a square profile with flat edges on all four sides. They cover more surface than round-profile O-rings for a better seal in static applications, such as hose, pipe, and faucet connections.

These assortments include a mix of EPDM O-rings that resist water and steam and silicone O-rings that resist temperatures up to 450° F.