Gasket Rings | McMaster-Carr

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Electrical Enclosure Fasteners

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Heat-Shrink Tubing

Hose Coupling Gaskets

Hydraulic Cylinder Seals

Insulating Washers

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Diluted Salt Solutions

Grooved-End Pipe Fittings

Liquid Insecticides

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EAR99

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20,060 Products

Most Likely Products

O-Rings

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

13,722 products

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

1,392 products

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

435 products

Sealing Washers

Prevent fluids from leaking around fasteners

752 products

Hose Coupling Gaskets

Form tight seals on cam-and-groove, grip-lock, and twist-claw hose connections

94 products

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

1,053 products

All Results

Sealing

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

1,392 products

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

435 products

Hose Coupling Gaskets

Form tight seals on cam-and-groove, grip-lock, and twist-claw hose connections

94 products

Drain Gaskets

Create a watertight seal between your drain and fixture without the mess of plumber's putty

3 products

Manway Gaskets

Create a tight seal between the nozzle and lid of tank car manways

8 products

Boiler Gaskets

Resist heat and steam to form a leak-resistant seal around closures on boilers

44 products

O-Rings

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

13,722 products

Backup Rings

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

360 products

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

533 products

U-Cup Seals

With a lip on both the inside and outside edges, they can be used for sealing rods and pistons

198 products

Piston Seals

Prevent leaks inside pistons by creating a seal against the cylinder bore

57 products

Packing Seals

Fill in gaps around pump shafts, valve stems, and agitators to prevent leaks

30 products

Spring-Loaded Seals

Seal rods and pistons with a wider range of temperature and chemical resistance than U-cup seals

54 products

Head Seals

Maintain a seal even under fluctuating pressure; more reliable than an O-ring with a backup ring

10 products

Cushioning Seals

Reduce wear and noise in air-powered cylinders by blocking the piston from hitting the cylinder body

5 products

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

50 products

Buffering Seals

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

22 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

54 products

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

109 products

Cord Stock

Cut to length to create customized seals

684 products

Fastening and Joining

Sealing Washers

Prevent fluids from leaking around fasteners

752 products

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

166 products

Insulating Washers

Isolate screws from electrical current and prevent corrosion from mating different metals

97 products

Building and Machinery Hardware

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

1,053 products

Fluid Handling

Tube Fitting Rings

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

6 products

Facility and Grounds Maintenance

Toilet Sealing Rings

Prevent leaks where toilets mount to the floor or wall

8 products

Flush Valve Replacement Parts

Replace virtually any part in the most common flush valve brands

6 products

Urinal Flanges

Connect a urinal to your drainage system

2 products

Toilet Tank-to-Bowl Gaskets

Create a tight seal between a toilet tank and bowl

2 products

Urinal Sealing Rings

Prevent leaks where urinals mount to the wall

2 products

Toilet Spuds

Connect wall-mount toilets to a flush valve

14 products

Urinal Spuds

Connect wall-mount urinals to a flush valve

5 products

Electrical Power, Networking, and Controlling

Conduit Locknuts

Secure threaded conduit fittings to knockouts in outlet boxes or enclosures

10 products

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

3 products

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

3 products

Power Transmission

Hydraulic Cylinder Seals

Replace seals on the piston or rod end of hydraulic cylinders

36 products

Cylinder Rod Glands

Replace the rod gland on hydraulic cylinders

13 products

Flexible Shaft Coupling Seal Kits

4 products

Measuring and Inspecting

O-Ring Gauges

Identify the size of your O-ring

4 products