Buna-N Rubber Round Stock | McMaster-Carr

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Rectangular Tube

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System of Measurement

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ID

Wall Thickness

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Hardness Rating

Color

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Fabrication

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Tolerance Rating

Performance

Chemical Resistant

Corrosion Resistant

Easy Thermoform

Electrically Insulating

Finish-Your-Own

Flame Retardant

High Temperature

Impact Resistant

Specifications Met

OSHA Compliant 29 CFR 1926.701

Maximum Temperature

Less than 1,000° F

1,000° F to 1,999° F

2,000° F to 2,999° F

3,000° F to 3,999° F

4,000° F or greater

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Appearance

Thickness

Width

Minimum Temperature

-250° F or less

-199° F to -100° F

-99° F to 0° F

Greater than 0° F

Yield Strength

Less than 10,000 psi

10,000 psi to 19,999 psi

20,000 psi to 99,999 psi

100,000 psi to 199,999 psi

200,000 psi or greater

How can we improve?

5,973 Products

Raw Materials

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

Steel

Strong, machinable, and weldable—all with material certificates for traceability

Stainless Steel

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

Plastic

A lightweight alternative to metal and glass

Bronze

Better wear resistance than copper and brass—all with material certificates for traceability

Brass

More machinable than copper and bronze—all with material certificates for traceability

Glass

Clear and highly heat and chemical resistant; often used in sights, lighting, and lab equipment

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

Rubber

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

Garolite

A strong, machinable alternative to metal and plastic widely used in circuit boards and gears

Titanium

The most corrosion-resistant metal we offer—all with material certificates for traceability

Tungsten

Our densest metal resists wear and heat to make end mills, heat shields, electrodes, and more

Foam

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

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

Gold

Form into electronic components that won't corrode—all with material certificates for traceability

Nickel

An upgrade from stainless steel to withstand harsh chemicals and acids—all with material certificates for traceability

Fiberglass

A lightweight alternative to metal and wood widely used in electrical and structural applications

Wood

Commonly used to build ramps, crates, and prototypes or to make repairs

Tantalum

Conductive with a higher melting point than most metals—all with material certificates for traceability

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

Kevlar

Super tough for protection against prolonged wear and abrasion

Hard Fiber

Chemically treated to be hard and dense, this is the easiest composite to machine in our offering

Platinum

Formable and conductive while resisting extreme heat—all with material certificates for traceability

Mica

An electrical insulator that resists high temperatures; use in circuit breakers and heating elements

Lead

A dense insulator often used to shield against radiation and absorb sound and vibration

Molybdenum

Retains its shape and strength in extreme temperatures—all with material certificates for traceability

Niobium

Conductive and corrosion resistant even at extreme temperatures—all with material certificates for traceability

Fabricating and Machining

3D Printer Filaments

3D Printer Filaments

Run through filament 3D printers to form plastic parts

Sealing

O-Ring Cord Stock

O-Ring Cord Stock

Cut to length to create customized seals

O-Ring Bonding Kits

O-Ring Bonding Kits

Everything needed to make O-rings

Backer Rods

Insert into gaps before caulking to reduce how much sealant you need and improve adhesion

Communication

Tags

Hang throughout facilities to convey information

Fastening and Joining

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

Solder

Join pieces of metal without melting the base material

Measuring and Inspecting

Metal Detector Calibration Kits

Metal Detector Calibration Kits

Test the sensitivity of food-processing metal detectors

Fluid Handling

Tubing Samples

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

Facility and Grounds Maintenance

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

Heating, Ventilation, and Air Conditioning

Pipe Insulation

Pipe Insulation

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

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