Metal O-Rings | McMaster-Carr

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Material

Silicon Carbide

Stainless Steel

Core Material

System of Measurement

ID

OD

Seal ID

Cross Section Shape

Width

Thickness

0.018" to 0.025"

0.024" to 0.038"

0.033" to 0.047"

0.035" to 0.045"

0.036" to 0.044"

0.042" to 0.052"

0.043" to 0.057"

0.045" to 0.055"

0.047" to 0.109"

0.055" to 0.069"

0.059" to 0.069"

0.065" to 0.100"

0.068" to 0.078"

Seal OD

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 499° F

500° F to 999° F

1,000° F or greater

Hardness Rating

Fractional ID

Shaft Diameter

Color

Fractional Width

Washer Type

Screw Size

Seal Width

REACH

O-Ring Material

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Filler Material

How can we improve?

1,425 Products

Sealing

O-Rings

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

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

Spring-Loaded Seals

Spring-Loaded Seals

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

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

Shaft Repair Sleeves

Shaft Repair Sleeves

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

Wear Ring Stock

Wear Ring Stock

Cut to make wear rings that fit any rod or bore to prevent uneven wear and extend the life of seals

Buffering Seals

Buffering Seals

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

Wear Rings

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

Hose Washers

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

Tube Fitting Gaskets

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

Manway Gaskets

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

Boiler Gaskets

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

Fastening and Joining

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Fastener Assortments

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

Fluid Handling

Tube Fitting Rings

Tube Fitting Rings

Prevent leaks at tubing connection points

Fabricating and Machining

Picks

Hold, separate, and position small parts such as wire and springs

Seal Pullers

Remove the seals around bearings

Small Parts Positioners

Small Parts Positioners

Position and install tiny springs and wires

Packing Seal Pullers

Packing Seal Pullers

Pull packing out of pump and valve seals

Cotter Pin Pullers

Cotter Pin Pullers

Pry out cotter pins

Packing Seal Installation Tools

Packing Seal Installation Tools

Install packing into hard-to-reach areas without damaging the packing

Power Transmission

Round Belts

Flexible to send rotary power between unparallel shafts

Electrical

Electrical Enclosure Fasteners

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

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