High-Temperature Sealing Washers | McMaster-Carr

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System of Measurement

Screw Size

OD

Material

Stainless Steel

ID

1/64" to 11/16"

1/64" to 1 1/4"

1/64" to 1 1/2"

Washer Type

Thickness

0.019" to 0.043"

0.021" to 0.041"

0.026" to 0.036"

0.035" to 0.045"

0.035" to 0.070"

0.042" to 0.052"

0.045" to 0.055"

0.047" to 0.109"

0.052" to 0.072"

0.054" to 0.070"

0.059" to 0.069"

0.078" to 0.105"

0.083" to 0.103"

0.115" to 0.135"

0.9 mm to 1.1 mm

1.1 mm to 1.4 mm

Environment

Food and Beverage

Color

Maximum Temperature

300° F to 399° F

400° F to 499° F

500° F or greater

Hardness

Application

Enclosure Rating

Minimum Temperature

-250° F or less

-249° F to -100° F

-99° F to -50° F

-49° F to -1° F

Greater than 0° F

Seal Hardness

For Use With

Maximum Pressure for Fluids

Less than 3,000 psi

3,000 psi to 3,999 psi

4,000 psi to 4,999 psi

Pressure Rating

Shape

REACH

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

Maximum Pressure for Gases

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

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Free of nooks and crannies where dirt and bacteria could collect

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