Rubber Gaskets | McMaster-Carr

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23,868 Products

Most Likely Products

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

763 products

Edge Seals

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

524 products

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

512 products

O-Rings

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

10,397 products

Foam

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

2,599 products

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

237 products

Rubber

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

4,297 products

All Results

Sealing

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

763 products

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

512 products

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

237 products

Hose Coupling Gaskets

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

94 products

Gasket Tape

Stick in place around doors, enclosures, and vents to create a leak-resistant seal

6 products

Hose Washers

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

12 products

EMI/RFI Shielding Gaskets

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

109 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

Manway Gaskets

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

4 products

Made-to-Order Gaskets

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

8 products

Gauge Glass Gaskets

Seal the glass on level indicators to monitor liquids without leaks

14 products

Gasket Makers

Seal irregular shapes and tiny crevices by applying a bead that hardens into a gasket

9 products

Drum Gaskets

Seal lids onto steel and stainless steel drums

6 products

Drum Plug Gaskets

Form a tighter seal in drum openings than with a drum plug alone

5 products

Edge Seals

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

524 products

Rope Seals

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

8 products

O-Rings

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

10,397 products

O-Ring Cord Stock

Cut to length to create customized seals

295 products

Backup Rings

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

141 products

O-Ring Bonding Kits

Everything needed to make O-rings

7 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

189 products

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

50 products

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

109 products

Piston Seals

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

57 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

11 products

Cushioning Seals

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

5 products

Sealants

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

192 products

Sealant Primers

Apply to surfaces before sealant to speed up drying times and improve adhesion

3 products

Raw Materials

Foam

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

2,599 products

Rubber

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

4,297 products

Building and Machinery Hardware

Edge Trim

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

122 products

Grommets

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

583 products

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

38 products

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

1 product

Weatherstripping

Seal gaps around doors, windows, and frames

38 products

Thresholds

Transition between flooring surfaces and reduce gaps between doors and floors

2 products

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

63 products

Fastening and Joining

Sealing Washers

Prevent fluids from leaking around fasteners

572 products

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

124 products

Tape

Bind, seal, and mark surfaces

9 products

Adhesives

Bond surfaces together

8 products

Fabricating and Machining

Vacuum Workholding Plate Gasketing

Seal off the in-use areas of vacuum chucks

3 products

Pocket Knives

Carry these portable cutting tools in a pocket or on a keychain

20 products

Gasket Cutters

Create circular gaskets from pliable material and soft metal

17 products

Precision Knives

Make exact cuts in paper, plastic, fabric, and other materials

48 products

Utility Knives

Make quick, shallow cuts; often used to open boxes and packages

113 products

Shop Knives

Make deep, repetitive cuts with the exposed blade and easy-to-hold handle

44 products

Scissors

Cut through a wide range of materials from paper and plastic to carpet and Kevlar

119 products

Razor Blades

Cut through various materials such as leather and rubber; often used in utility knives

28 products

Miter Angle Cutters

Make cuts at precise angles; use on weatherstripping, dowels, and trim for door and window frames

2 products

Scalpels

Trim and puncture thin material such as paper, plastic, and fabric

24 products

Hot-Blade Knives

Melt through synthetic fabric and rubber, leaving clean edges

4 products

Hole Punches

Punch holes in metal, plastic, and fabric

14 products

Fluid Handling

Tube and Tube Fittings

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

33 products

Strainers

Install next to valves and pumps to catch debris in your line

3 products

Facility and Grounds Maintenance

Toilet Sealing Rings

Prevent leaks where toilets mount to the floor or wall

2 products

Toilet Tank-to-Bowl Gaskets

Create a tight seal between a toilet tank and bowl

2 products

Toilet Tank Replacement Parts

Replace parts such as flappers, fill valves, and floats in your toilet tank

3 products

Faucet Washers

Seal faucet components so they don’t leak

16 products

Heating, Ventilation, and Air Conditioning

Pipe Insulation

Fit around pipe, tubing, and tanks to reduce heat loss or condensation

28 products

Chimney Pipe and Fittings

Exhaust hot air and fumes from boilers, furnaces, and stoves

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

15 products

Rod End Seals

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

16 products

Compressed Air Filter Seals

Replace O-rings in compressed air filters

17 products

Electrical

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

3 products

Wire Sleeving

Bundle wiring and protect from abrasion and heat

83 products

Material Handling

Dock Door Shelters

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

3 products