Washer Seals | McMaster-Carr

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Diluted Salt Solutions

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Compliant with Exemptions

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

Yes

DFARS Specialty Metals

Compliant

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Export Control Classification Number (ECCN)

15,561 Products

Fastening and Joining

Sealing Washers

Prevent fluids from leaking around fasteners

752 products

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

7 products

Sealing

O-Rings

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

13,865 products

Backup Rings

Extend the life of O-rings and improve their performance under high pressure

313 products

Hose Washers

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

12 products

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

533 products

Facility and Grounds Maintenance

Faucet Washers

Seal faucet components so they don’t leak

24 products

Sink Drain Fitting Washers

Replace the washers in sink drain fittings

6 products

Fluid Handling

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

33 products

Electrical Power, Networking, and Controlling

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

3 products

Conduit Reducing Washers

Shrink knockout sizes in outlet boxes or enclosures to connect smaller conduit

7 products

Raw Materials

Rubber

Compresses and bounces back to shape; often used for sealing, cushioning, and shock absorbing

6 products