Buna-N Rubber Rounds | McMaster-Carr

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11,586 Products

Building and Machinery Hardware

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

Grommets

Insert into holes with rough edges to protect wire, cable, and cords from cuts and tears

Door Silencers

Close doors quietly and keep them from rattling in their frames

Crane Bumpers

Resist heavy hits on cranes to protect walls or beams and extend crane life

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Protective Caps

Protective Caps

Cover holes at the end of pipe, conduit, and fittings to keep out debris

Vibration-Damping Mounts

Vibration-Damping Mounts

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

Vibration-Damping Pads

Vibration-Damping Pads

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

Hand Grips

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

Floor Mats

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

Raw Materials

Rubber

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

Plastic

A lightweight alternative to metal and glass

Foam

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

Sealing

O-Ring Cord Stock

O-Ring Cord Stock

Cut to length to create customized seals

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

Gasket Material

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

EMI/RFI Shielding Gaskets

EMI/RFI Shielding Gaskets

Fit around enclosure doors or data connectors to prevent inaccurate signals and flickering displays

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

Tube Fitting Gaskets

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube 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

Containers, Storage, and Furniture

Workbench Mats

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

Heating, Ventilation, and Air Conditioning

Pipe Insulation

Pipe Insulation

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

Facility and Grounds Maintenance

Floor Drain Covers

Floor Drain Covers

Put a lid on open drains to prevent accidents and injuries

Fluid Handling

Tube and Tube Fittings

Tube and Tube Fittings

Flexible or rigid with thinner walls than pipe for carrying liquids and gases in short runs

Hose and Hose Fittings

Hose and Hose Fittings

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

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Fastening and Joining

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

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.)