Durometer 90A O-Rings | McMaster-Carr

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System of Measurement

ID

OD

Cross Section Shape

Dash Number

Material

Hardness Rating

Color

For Use With

Diluted Salt Solutions

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Ammonium Hydroxide

Calcium Hydroxide

Seal OD

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 499° F

Thickness

Tube OD

Fractional ID

Fractional OD

Fractional Width

Specifications Met

Minimum Temperature

-99° F to -50° F

-49° F to -1° F

Greater than 0° F

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

RoHS

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

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1,439 Products

Sealing

O-Rings

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

Backup Rings

Extend the life of O-rings and improve their performance under high pressure

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

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Buffering Seals

Buffering Seals

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

Cord Stock

Cut to length to create customized seals

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