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.

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

Use these O-rings with metric sanitary fittings, which are sometimes called aseptic fittings. Made of Viton® fluoroelastomer, these O-rings resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol.

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.

Because one black O-ring looks just like another, these O-rings are brown for easy identification.

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.

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

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

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 temperature- and chemical-resistant O-rings prevent leaks in tube fittings that have a straight-thread connection, also known as O-ring boss fittings.

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

Made of Kalrez 6230, these O-rings are for use when high purity is essential, such as with food and semiconductors.

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.

Flexible even at temperatures as low as -60° F, these fluorosilicone O-rings will keep your fittings free from leaks. They’re often used on fuel and coolant hose because fluorosilicone resists many chemicals, including ethanol and ethylene glycol.

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

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.

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.

These O-rings also resist ethanol and ethylene glycol.

Made of FDA-listed material for use with food and beverage.

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

These O-rings also resist ammonia, ethylene glycol, and isopropyl alcohol.

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.

The X shape of this cord stock provides four points of contact for a better seal in dynamic applications than round profile. It also requires less compression to make a seal, so it offers a longer service life.

This square-profile cord stock has flat edges on all four sides, which creates a better seal than round profile in static applications, such as hose, pipe, and faucet connections.

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

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

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.

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.

This soft cord stock creates a better seal in low-pressure applications that standard neoprene cord stock.

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.

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.

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.

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

Use these sliding gauges to identify 312 dash numbers for O-rings with 1/32” to 13” ID ranges.

These kits include everything you need to make your own Buna-N, fluoroelastomer, or EPDM O-rings.

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.

PTFE gives these seals a slippery surface that allows rod speeds more than two times faster than our other piston seals.

Avoid common O-ring failure in dynamic applications—the square base of these seals prevents twisting, while backup rings protect against extrusion.

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.

Rated for pressure up to 10,000 psi, these seals withstand the highest pressure of our buffering seals.

These rod wipers are also known as U-type wipers.

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.

Push the lever and this compressor instantly releases for easy removal.

These compressors use either a spring clutch or two screws to make incremental sizing adjustments for a secure fit. Use them to ensure smooth insertion of your piston into a cylinder.

Fill irregularities in valve stem with these soft PTFE seals.

Also known as 100% GFO, these expanded PTFE seals contain graphite powder, which dissipates heat away from the shaft and allows pumps to run cool at high speeds.

These seals are made of PTFE fiber without a lubricant, so they’re harder than other chemical-resistant packing seals to handle high-pressure valve applications.

Aramid and PTFE fibers are blended for seals that resist chemicals and abrasion. Use these seals in pumps.

Our most compressible packing seals, these require less pressure than any other to make an effective seal. They’re made of lubricated PTFE-impregnated aramid fiber and are for use in pumps.

Synthetic yarn that’s comparable in strength to aramid is combined with graphite for soft seals that dissipate heat away from the shaft to extend the life of pumps.

Offering excellent flexibility, these seals are made of expanded graphite yarn. Use them for steam applications in pumps and valves.

The Inconel-wire reinforcement in these expanded-graphite yarn seals ensures they keep their shape longer than the High-Flexibility Steam-Resistant Packing Seals. Use them for steam applications in valves.

These leather V-ring packing seals handle over twice the pressure as PTFE. Leather is tough, pliable, and wear resistant, so it flexes to fit uneven surfaces and fill voids.

Super thin and flexible, these cotton yarn seals fit into tight spaces, such as in faucets.

Ribbed Buna-N over steel creates a tight seal with the bore, even when mating with a rough surface or in a split housing.

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.

Swap out old seals without disassembling components—these seals come split for easy installation. They're also known as clipper 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.

Also known as speedi sleeves, use these to repair and protect worn shafts for a smooth sealing surface without machining.

Made of durable material, these washers resist wear from rubbing and scraping surfaces.

These washers surpass other rubber washers when it comes to withstanding oil, grease, and fuel.