Rubber Ring Seals | McMaster-Carr

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13,067 Products

Sealing

O-Rings

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

Backup Rings

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

O-Ring Cord Stock

O-Ring Cord Stock

Cut to length to create customized seals

O-Ring Bonding Kits

O-Ring Bonding Kits

Everything needed to make O-rings

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

Piston Seals

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

U-Cup Seals

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

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Buffering Seals

Buffering Seals

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

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

Head Seals

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

Cushioning Seals

Cushioning Seals

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

Hose Coupling Gaskets

Hose Coupling Gaskets

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

Tube Fitting Gaskets

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

Hose Washers

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

Boiler Gaskets

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

Manway Gaskets

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

Drain Gaskets

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

Fastening and Joining

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Cushioning Washers

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

Fastener Assortments

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

Facility and Grounds Maintenance

Toilet Sealing Rings

Toilet Sealing Rings

Prevent leaks where toilets mount to the floor or wall

Toilet Tank-to-Bowl Gaskets

Toilet Tank-to-Bowl Gaskets

Create a tight seal between a toilet tank and bowl

Power Transmission

Hydraulic Cylinder Seals

Hydraulic Cylinder Seals

Replace seals on the piston or rod end of hydraulic cylinders

Cylinder Rod Glands

Cylinder Rod Glands

Replace the rod gland on hydraulic cylinders

Compressed Air Filter Seals

Compressed Air Filter Seals

Replace O-rings in compressed air filters

Rod End Seals

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

Fluid Handling

Tube and Tube Fittings

Tube and Tube Fittings

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

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)