Metal O-Rings | McMaster-Carr

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Electrical Insulating

High Speed

High Temperature

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Highly Tear Resistant

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Diluted Salt Solutions

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

O-Ring Material

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1,609 Products

Sealing

O-Rings

Fit snugly into a groove between parts to create a leak-resistant seal

223 products

O-Ring Bonding Kits

Everything needed to make O-rings

9 products

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

424 products

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

11 products

Wear Ring Stock

Cut to make wear rings that fit any rod or bore to prevent uneven wear and extend the life of seals

12 products

Wear Rings

Guide rods and pistons to prevent uneven wear and extend the life of seals

16 products

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

17 products

Buffering Seals

Protect hydraulic cylinders from pressure spikes and shock in high-pressure applications

9 products

Shaft Repair Sleeves

Cover worn shafts with a smooth and protective sealing surface without machining

21 products

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

242 products

Hose Washers

Place inside nozzles and spigots to prevent leaks in an attached hose

1 product

Cord Stock

Cut to length to create customized seals

15 products

Fastening and Joining

Sealing Washers

Prevent fluids from leaking around fasteners

371 products

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

13 products

Fluid Handling

Tube Fitting Rings

Snap onto push-to-connect fittings to identify different tubing lines

33 products

Fabricating and Machining

Picks

Hold, separate, and position small parts such as wire and springs

106 products

Seal Pullers

Remove the seals around bearings

3 products

Small Parts Positioners

Position and install tiny springs and wires

13 products

Packing Seal Pullers

Pull packing out of pump and valve seals

Packing Seal Installation Tools

Install packing into hard-to-reach areas without damaging the packing

2 products

Electrical Power, Networking, and Controlling

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

3 products

Power Transmission

Flexible Shaft Coupling Seal Kits

4 products

Round Belts

Flexible to send rotary power between unparallel shafts

14 products