Double 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"

For Use With

Diluted Salt Solutions

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Ammonium Hydroxide

ID

Bore Diameter

Material

OD

Width

Rod Diameter

Dash Number

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 299° F

300° F to 399° F

400° F or greater

Hardness

For Sealing

Color

For Cylinder Type

Hardness Rating

Maximum Pressure

Less than 100 psi

100 psi to 249 psi

250 psi to 299 psi

300 psi to 999 psi

1,000 psi or greater

REACH

RoHS

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Groove Diameter

How can we improve?

1,305 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 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

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

Edge Seals

Block dust, water, and wind from entering the gaps around doors and windows

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