Buna-N Rubber | McMaster-Carr

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Material

Cotton/Polyester Fabric

Stainless Steel

O-Ring Material

System of Measurement

Width

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"

Hardness

Color

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"

Backing Type

OD

Hardness Rating

Length

Cross Section Shape

For Use With

Diluted Salt Solutions

Dissimilar Metals

Grooved-End Pipe Fittings

Heavy Machinery

Texture

Fine Crisscross

Maximum Temperature

Less than 250° F

250° F to 499° F

500° F to 999° F

Minimum Temperature

-250° F or less

-199° F to -100° F

-99° F to -1° F

Greater than 0° F

For Use Outdoors

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

Specifications Met

ANSI LC 4/CSA 6.32

Federal Specification

DFARS Specialty Metals

Seal Material

Formulation

How can we improve?

8,639 Products

Raw Materials

Rubber

Compresses and bounces back to shape; often used for sealing, cushioning, and shock absorbing

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

Sealing

O-Rings

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

O-Ring Cord Stock

O-Ring Cord Stock

Cut to length to create customized seals

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

Gasket Material

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

Tube Fitting Gaskets

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

Manway Gaskets

Create a tight seal between the nozzle and lid of tank car manways

Made-to-Order Gaskets

Made-to-Order Gaskets

Send your exact specifications to get gaskets that fit precisely between surfaces

Edge Seals

Block dust, water, and wind from entering the gaps around doors and windows

Sealants

Fill and seal gaps in metal, plastic, wood, and other materials

Building and Machinery Hardware

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

Grommets

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

Vibration-Damping Pads

Vibration-Damping Pads

Place under machinery to reduce vibration and noise, extending service life and protecting floors

Leveling Mounts

Leveling Mounts

Level machines and workbenches on uneven surfaces, reduce vibration, and protect floors

Protective Feet

Protective Feet

Add to furniture and light equipment to protect floors from scratches and wear

Vibration-Damping Mounts

Vibration-Damping Mounts

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

Floor Mats

Set down in work areas to provide traction and comfort, trap dirt, absorb moisture, and drain water

Hand Grips

Cover handles so they're more comfortable and secure to hold

Containers, Storage, and Furniture

Workbench Mats

Extend the life of workbench tops as well as cushion tools and parts when they fall

Kneeling Pads

Protect your knees or back when working on the ground

Fluid Handling

Tube and Tube Fittings

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Tubing Samples

Test tubing material or hardness to confirm it works for your application

Hose and Hose Fittings

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Pipe and Pipe Fittings

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

Fastening and Joining

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Heating, Ventilation, and Air Conditioning

Pipe Insulation

Pipe Insulation

Fit around pipe, tubing, and tanks to reduce heat loss or condensation

Electrical

Static Control Mats

Static Control Mats

Dissipate static charges from work surfaces to protect electronics you’re working on

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