High Temperature Sealing Washers | McMaster-Carr

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Screw Size

Material

Stainless Steel

OD

ID

1/64" to 11/16"

1/64" to 1 1/4"

1/64" to 1 1/2"

System of Measurement

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"

Washer Type

Environment

Food and Beverage

Color

Maximum Temperature

300° F to 499° F

500° F to 999° F

1,000° F or greater

Hardness

Application

Food Industry Standard

3-A Certified 18-03

Maximum Pressure for Fluids

Less than 3,000 psi

3,000 psi to 3,999 psi

4,000 psi to 4,999 psi

Enclosure Rating

For Use With

Minimum Temperature

-250° F or less

-249° F to -100° F

-99° F to -50° F

-49° F to 0° F

Greater than 0° F

Seal Hardness

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

RoHS

Maximum Pressure for Gases

Shape

Pressure Rating

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