Gasket Seals | McMaster-Carr

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DFARS Specialty Metals

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NFPA (National Fluid Power Association) Standard

For Use Outdoors

30,785 Products

Most Likely Products

Edge Seals

Block dust, water, and wind from entering the gaps around doors and windows

529 products

O-Rings

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

13,722 products

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

1,711 products

Cord Stock

Cut to length to create customized seals

684 products

All Results

Sealing

Edge Seals

Block dust, water, and wind from entering the gaps around doors and windows

529 products

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

1,392 products

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

691 products

Hose Coupling Gaskets

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

94 products

Gasket Tape

Seal openings such as those around windows, enclosures, and pipe flanges to prevent leaks

94 products

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

435 products

EMI/RFI Shielding Gaskets

Fit around enclosure doors or data connectors to prevent inaccurate signals and flickering displays

110 products

Gasket Sealants

Seal gaskets on metal parts

11 products

Hose Washers

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

12 products

Drain Gaskets

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

3 products

Boiler Gaskets

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

44 products

Made-to-Order Gaskets

Send your exact specifications to get gaskets that fit precisely between surfaces

16 products

Manway Gaskets

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

8 products

Heat Exchanger Gaskets

Replace front and rear gaskets in shell and tube heat exchangers

23 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

O-Ring Bonding Kits

Everything needed to make O-rings

51 products

Cord Stock

Cut to length to create customized seals

684 products

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

533 products

Packing Seals

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

231 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

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

109 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

Head Seals

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

10 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

Packing Seal Lubricating Rings

Install between layers of packing seals to distribute lubricants evenly; also known as lantern rings

8 products

Spring-Loaded Seals

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

54 products

Cushioning Seals

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

5 products

Wear Rings

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

54 products

Shaft Repair Sleeves

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

21 products

Piston Seals

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

57 products

Sealants

Fill and seal gaps in metal, plastic, wood, and other materials

275 products

Rope Seals

Insulate the edges of oven, furnace, and boiler doors to keep heat in

135 products

Raw Materials

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

1,711 products

Rubber

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

5,913 products

Felt

Thicker and more absorbent than fabric for insulating, polishing, cushioning, and gasketing

92 products

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

85 products

Mica

An electrical insulator that resists high temperatures; use in circuit breakers and heating elements

199 products

Leather

Durable and long lasting; often used for belting, lacing, and sealing applications

3 products

Carbon

An electrical conductor that’s often used in electronics and sensors

3 products

Building and Machinery Hardware

Edge Trim

Install on panels, boards, signs, and mirrors to protect edges from impact

425 products

Grommets

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

1,069 products

Panel Connecting Trim

Connect two panels while protecting the edges from damage

33 products

Surface Guards

Protect walls and other flat surfaces from impact

25 products

Weatherstripping

Seal gaps around doors, windows, and frames

131 products

Door Drip Guards

Divert rain and snow away from door openings

13 products

Threshold Ramps

Create a gradual incline between uneven floor surfaces for wheelchairs and other wheeled equipment

6 products

Thresholds

Transition between flooring surfaces and reduce gaps between doors and floors

24 products

Privacy Sprays

Block the view through windows by adding a frosted effect

1 product

Window Film

Apply to windows for privacy, insulation, less glare, and a lower chance of shattering

41 products

Fastening and Joining

Sealing Washers

Prevent fluids from leaking around fasteners

752 products

Construction Adhesives

Join a wide range of construction materials, from drywall to carpeting

6 products

Repair and Duct Tape

Permanently join or seal surfaces

45 products

Structural Adhesives

Epoxy, acrylic, urethane, and other adhesives strong enough to replace screws and rivets

1 product

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

Rod End Seals

Keep dirt out and lubrication in to extend the life of rod ends

16 products

Flexible Shaft Coupling Seal Kits

4 products

Facility and Grounds Maintenance

Flush Valve Replacement Parts

Replace virtually any part in the most common flush valve brands

6 products

Toilet Sealing Rings

Prevent leaks where toilets mount to the floor or wall

8 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

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

Urinal Flanges

Connect a urinal to your drainage system

2 products

Fluid Handling

Tube Fitting Rings

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

33 products

Material Handling

Dock Door Seals

Close the gap between dock doors and trailers to keep heated or cooled air in and dust out

9 products

Dock Door Shelters

Wrap around trailers where they meet dock doors to shield out the elements better than seals

4 products

Electrical Power, Networking, and Controlling

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

3 products