Buna-N Rubber Washers | McMaster-Carr

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Material

304 Stainless Steel

Seal Material

System of Measurement

ID

1/64" to 11/16"

1/64" to 1 1/8"

1/64" to 1 1/2"

1/32" to 1 3/4"

OD

Width

Cross Section Shape

Screw Size

Thickness

0.019" to 0.043"

0.021" to 0.041"

0.026" to 0.036"

0.035" to 0.045"

0.036" to 0.044"

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"

0.059" to 0.069"

0.073" to 0.083"

Washer Type

Color

Hardness

For Use With

Diluted Salt Solutions

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Hardness Rating

Dash Number

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 499° F

Fractional ID

Shape

Fractional Width

Fractional OD

Seal ID

Environment

Food and Beverage

REACH

RoHS

Export Control Classification Number (ECCN)

DFARS Specialty Metals

How can we improve?

4,824 Products

Fastening and Joining

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Cushioning Washers

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Socket Retaining Rings

Socket Retaining Rings

Secure sockets and adapters to impact tools

Sealing

O-Rings

Fit snugly into a groove between parts to create a leak-resistant seal

Backup Rings

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

O-Ring Bonding Kits

O-Ring Bonding Kits

Everything needed to make O-rings

O-Ring Cord Stock

O-Ring Cord Stock

Cut to length to create customized seals

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

Facility and Grounds Maintenance

Faucet Washers

Seal faucet components so they don’t leak

Building and Machinery Hardware

Grommets

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

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