Dynamic Seals | McMaster-Carr

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System of Measurement

Seal ID

Seal OD

Seal Width

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"

Bore Diameter

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Ammonium Hydroxide

Rod Diameter

ID

For Sealing

Material

300 Series Stainless Steel

For Cylinder Type

Maximum Pressure

Less than 100 psi

100 psi to 249 psi

250 psi to 999 psi

1,000 psi to 5,999 psi

6,000 psi or greater

OD

Shaft Seal Motion

Loaded Type

Square Profile O-Ring

T-Profile O-Ring

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 399° F

400° F to 499° F

500° F or greater

Groove Width

Color

Groove Diameter

Cylinder Seal Type

Buffering Rod Seal

Cushioning Rod Seal

Hardness

REACH

RoHS

Export Control Classification Number (ECCN)

DFARS Specialty Metals

How can we improve?

1,186 Products

Sealing

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

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Rod Seal Installation Tools

Rod Seal Installation Tools

Reduce the risk of distorting or breaking seals, wipers, and O-rings during installation

Spring-Loaded Seals

Spring-Loaded Seals

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

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

Buffering Seals

Buffering Seals

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

Packing Seals

Fill in gaps around pump shafts, valve stems, and agitators to prevent leaks

Wear Rings

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

Head Seals

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

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

Piston Ring Compressors

Piston Ring Compressors

Squeeze piston rings to smoothly install pistons into cylinders

Cushioning Seals

Cushioning Seals

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

Shaft Repair Sleeves

Shaft Repair Sleeves

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

Piston Ring Installation Tools

Piston Ring Installation Tools

Protect piston rings from damage during installation and removal

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