Oil-Resistant Sealing Washers | McMaster-Carr

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System of Measurement

Screw Size

ID

1/64" to 11/16"

1/64" to 1 1/8"

1/64" to 1 1/2"

1/32" to 1 3/4"

1/32" to 2 7/8"

Material

Stainless Steel

OD

Thickness

0.018" to 0.025"

0.019" to 0.043"

0.021" to 0.041"

0.024" to 0.038"

0.026" to 0.036"

0.033" to 0.047"

0.035" to 0.045"

0.036" to 0.044"

0.042" to 0.052"

0.043" to 0.057"

0.045" to 0.055"

0.046" to 0.078"

0.047" to 0.077"

0.052" to 0.072"

0.054" to 0.070"

Washer Type

Environment

Food and Beverage

Finish

Color

Hardness

Width

For Use With

Diluted Salt Solutions

Synthetic Lubricants

Calcium Hydroxide

Sodium Bicarbonate (Baking Soda)

Cross Section Shape

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 399° F

400° F to 499° F

Application

Shape

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

REACH

RoHS

Specifications Met

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

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

10,000 psi or greater

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

720 Products

Sealing Washers

High-Pressure Bonded Sealing Washers

High-Pressure Bonded Sealing Washers

Prevent leaks in pumps, hydraulic systems, and other pressurized lines

Sealing Washers

Sealing Washers

Choose from rubber, PTFE, hard fiber, or metal

Sealing Washer Assortments

Sealing Washer Assortments

A collection of common sizes to prevent leaks around nuts and screws

Sanitary Bonded Sealing Washers

Sanitary Bonded Sealing Washers

Free of nooks and crannies where dirt and bacteria could collect

Other Products

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Hose Washers

Place inside nozzles and spigots to prevent leaks in an attached hose

Vibration-Damping Mounts

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

Backup Rings

Extend the life of O-rings and improve their performance under high pressure

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