Chemical Resistant Sealing Washers | McMaster-Carr

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System of Measurement

Screw Size

Material

Stainless Steel

ID

OD

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"

0.052" to 0.072"

0.059" to 0.069"

0.068" to 0.078"

0.068" to 0.088"

0.072" to 0.082"

0.077" to 0.087"

0.081" to 0.105"

0.083" to 0.103"

Environment

Food and Beverage

Color

Hardness

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 399° F

400° F to 499° F

500° F or greater

For Use With

Application

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

Shape

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

RoHS

Pressure Rating

Seal Hardness

REACH

Maximum Pressure for Gases

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Hardness Rating

Maximum Pressure

Less than 1,000 psi

1,000 psi to 2,999 psi

3,000 psi to 3,999 psi

4,000 psi to 9,999 psi

How can we improve?

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