Durometer 55A O-Rings | McMaster-Carr

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System of Measurement

ID

Screw Size

OD

Material

Washer Type

Thickness

0.019" to 0.043"

0.036" to 0.044"

0.045" to 0.055"

0.046" to 0.078"

0.047" to 0.077"

0.059" to 0.069"

0.073" to 0.083"

0.078" to 0.108"

0.089" to 0.099"

0.104" to 0.114"

0.105" to 0.145"

0.110" to 0.140"

0.115" to 0.125"

1.168 mm to 1.981 mm

Width

Environment

Food and Beverage

Color

Cross Section Shape

Hardness Rating

Finish

Performance

Weather Resistant

Maximum Temperature

Less than 250° F

300° F to 499° F

For Use With

Diluted Salt Solutions

Synthetic Lubricants

Calcium Hydroxide

Elemental Fluorines

Ethylene Glycol

REACH

Fractional Width

Length

RoHS

Maximum Pressure for Fluids

Less than 3,000 psi

3,000 psi to 3,999 psi

4,000 psi to 4,999 psi

5,000 psi to 9,999 psi

10,000 psi or greater

Minimum Temperature

-49° F to -1° F

Greater than 0° F

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Specifications Met

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