Double-Seal O-Rings | McMaster-Carr

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Cross Section Shape

System of Measurement

ID

Seal ID

OD

Seal OD

Width

Dash Number

Shaft Diameter

0.210" to 0.260"

0.217" to 0.256"

0.370" to 0.450"

0.374" to 0.453"

0.450" to 0.530"

0.453" to 0.492"

0.610" to 0.689"

0.610" to 0.690"

Material

For Use With

Diluted Salt Solutions

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Ammonium Hydroxide

Seal Width

Fractional ID

Hardness

Fractional OD

Fractional Width

Maximum Temperature

Less than 225° F

225° F to 249° F

250° F to 299° F

300° F to 399° F

400° F or greater

Hardness Rating

Bore Diameter

Color

Rod Diameter

REACH

RoHS

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Minimum Temperature

-50° F or less

-49° F to -25° F

-24° F to 0° F

Greater than 0° F

How can we improve?

1,507 Products

Sealing

O-Rings

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

O-Ring Cord Stock

O-Ring Cord Stock

Cut to length to create customized seals

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

U-Cup Seals

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

Piston Seals

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

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

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Spring-Loaded Seals

Spring-Loaded Seals

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

Buffering Seals

Buffering Seals

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

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