Ring Gaskets | McMaster-Carr

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DFARS Specialty Metals

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NFPA (National Fluid Power Association) Standard

19,029 Products

Sealing

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

1,395 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

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

428 products

Boiler Gaskets

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

44 products

Hose Washers

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

12 products

Manway Gaskets

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

8 products

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

O-Ring Bonding Kits

Everything needed to make O-rings

7 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

Packing Seal Lubricating Rings

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

8 products

Piston Seals

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

57 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 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

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

Wear Rings

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

Shaft Repair Sleeves

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

21 products

Buffering Seals

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

22 products

Cord Stock

Cut to length to create customized seals

396 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

167 products

Facility and Grounds Maintenance

Toilet Sealing Rings

Prevent leaks where toilets mount to the floor or wall

8 products

Toilet Tank-to-Bowl Gaskets

Create a tight seal between a toilet tank and bowl

2 products

Toilet Spuds

Connect wall-mount toilets to a flush valve

14 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

Urinal Spuds

Connect wall-mount urinals to a flush valve

5 products

Urinal Sealing Rings

Prevent leaks where urinals mount to the wall

2 products

Fluid Handling

Tube and Tube Fittings

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

33 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

Rod End Seals

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

16 products

Measuring and Inspecting

O-Ring Gauges

Identify the size of your O-ring

4 products