Brown Gaskets | McMaster-Carr

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571 Products

About O-Rings

Ultra-High-Temperature Vermiculite Pipe Gaskets

Our highest-temperature gaskets, these are made of vermiculite to withstand temperatures up to 1800° F.

High-Temperature Graphite/Buna-N Pipe Gaskets

These gaskets are made from a blend of graphite and Buna-N rubber to withstand temperatures up to 650° F.

High-Temperature Graphite/Buna-N
Pipe Gaskets with Bolt Holes

Made from a blend of graphite and Buna-N rubber, these gaskets withstand temperatures up to 650° F.

Water-Resistant Lightweight Fiber Gasket Material

This paper-thin material is commonly used for light-duty gasketing.

High-Temperature High-Pressure
Fire-Rated Graphite Gasket Material

Made of American Bureau of Shipping Fire Safe approved graphite material, these sheets withstand temperatures up to 650° F and pressure up to 2,000 psi.

High-Temperature Fire-Rated
Hollow Rubber Surface-Mount Seals

Tested in accordance with UL and NFPA standards, these silicone rubber seals are for use on fire-rated doors.

Heavy Duty Shaft-Mounted Rotary Seals

These seals are fluoroelastomer, so they have excellent chemical resistance and withstand temperatures up to 390° F.

High-Speed Rod Seals

The slippery PTFE surface of these seals allows rod motion up to seven times faster than our other rod seals.

High-Speed Hydraulic Cylinder Buffering Seals

PTFE gives these seals a slippery surface that facilitates rod speeds over seven times faster than our other buffering seals. They're rated for pressure up to 5,000 psi.

Wear Ring Stock

Cut this stock to make wear rings that fit any rod or bore diameter.

High-Speed Wear Rings

Made from PTFE, these wear rings have a slippery surface that allows rods to move at least three times faster than nylon wear rings.

Chemical-Resistant Brown
Viton® Fluoroelastomer O-Rings

Because one black O-ring looks just like another, these O-rings are brown for easy identification.

Chemical-Resistant Brown Viton®
Fluoroelastomer O-Rings for Tube
Fittings with Straight-Thread Connection

Also known as Boss O-rings, these O-rings are for use in tube fittings with a straight-thread connection. They are brown for easy identification.

Oil- and Chemical-Resistant O-Ring Assortments

These assortments contain a mix of Buna-N O-rings that resist oil and Viton® fluoroelastomer O-rings that resist boric acid, fuels, and transmission fluid.

Chemical-Resistant Brown Viton®
Fluoroelastomer O-Ring Cord Stock

The brown color of this cord stock makes it easy to identify.

All-Weather Application Sealants

Apply these sealants in cold temperatures, on wet surfaces, and even through running water.

Caulk

Non-Hardening Caulk

Also known as thumb-grade caulk, this forms a non-hardening, moisture-resistant seal that remains pliable.

Raw Materials

Super-Resilient High-Temperature
Silicone Foam Sheets and Strips

This premium silicone is the most resilient foam we offer. It is equivalent to Cohrlastic and is also known as Norseal and silicone sponge.

High-Temperature Silicone
Rubber Sheets, Bars, and Strips

Soft Felt Lining Sheets

Line toolboxes and drawers to cushion and protect small parts.

High-Strength Basalt Pipe Insulation

Superior in strength and durability, these thin strips insulate as well as protect personnel from accidental contact with hot pipes. Use for exhaust, hot water, and process pipes.