Reciprocating Piston Seals | McMaster-Carr

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Seal ID

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For Cylinder Type

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Diluted Salt Solutions

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Ammonium Hydroxide

Rod Diameter

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For Sealing

Cylinder Seal Type

Material

Maximum Pressure

Loaded Type

Square Profile O-Ring

T-Profile O-Ring

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 299° F

300° F to 499° F

500° F or greater

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Shaft Seal Motion

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Hardness Rating

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RoHS

Export Control Classification Number (ECCN)

REACH

DFARS Specialty Metals

Speed

Minimum Temperature

-250° F or less

-249° F to -50° F

-49° F to -25° F

-24° F to 0° F

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375 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

Spring-Loaded Seals

Spring-Loaded Seals

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

Wear Rings

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

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

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