Pneumatic Seals | McMaster-Carr

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System of Measurement

Seal ID

Seal OD

Rod Diameter

Bore Diameter

For Cylinder Type

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Synthetic Lubricants

Transmission Fluid

Groove Diameter

For Sealing

Cylinder Seal Type

Cushioning Rod Seal

Material

Maximum Pressure

Hardness

Color

Maximum Temperature

Less than 250° F

250° F to 399° F

400° F to 499° F

500° F to 999° F

1,000° F or greater

Loaded Type

Square Profile O-Ring

O-Ring Material

Hardness Rating

Maximum Speed

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Minimum Temperature

-250° F or less

-249° F to -100° F

-99° F to -50° F

-49° F to -25° F

Greater than -25° F

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495 Products

Sealing

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

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

Cushioning Seals

Cushioning Seals

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

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

Thread Sealants

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

Fluid Handling

Tube Fitting Rings

Tube Fitting Rings

Prevent leaks at tubing connection points

Power Transmission

Compressed Air Filter Seals

Compressed Air Filter Seals

Replace O-rings in compressed air filters

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