Durometer 90A O-Rings | McMaster-Carr

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System of Measurement

ID

Cross Section Shape

OD

Dash Number

Material

Fluoroelastomer

Polyurethane Rubber

Viton® Fluoroelastomer

Hardness Rating

Color

For Use With

Diluted Salt Solutions

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Ammonium Hydroxide

Calcium Hydroxide

Fractional ID

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 499° F

Fractional Width

Fractional OD

Seal OD

Thickness

Specifications Met

Seal Width

Minimum Temperature

-99° F to -50° F

-49° F to 0° F

Greater than 0° F

RoHS

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

Construction

How can we improve?

1,032 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

O-Ring Cord Stock

O-Ring Cord Stock

Cut to length to create customized seals

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

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