PTFE O-Rings | McMaster-Carr

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Material

Molybdenum Disulfide

Silicon Carbide

Stainless Steel

Filler Material

Molybdenum Disulfide

System of Measurement

ID

OD

Width

Cross Section Shape

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Synthetic Lubricants

Transmission Fluid

Dash Number

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 499° F

500° F to 999° F

Minimum Temperature

-250° F or less

-249° F to -100° F

-99° F to -50° F

-49° F to -1° F

Greater than 0° F

Color

Seal ID

Hardness Rating

Environment

Food and Beverage

Thickness

0.026" to 0.036"

0.035" to 0.070"

Seal OD

Fractional ID

Tube OD

Hardness

RoHS

DFARS Specialty Metals

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

Export Control Classification Number (ECCN)

Gasket Material

How can we improve?

974 Products

Sealing

O-Rings

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

Packing Seals

Fill in gaps around pump shafts, valve stems, and agitators to prevent leaks

Piston Seals

Prevent leaks inside pistons by creating a seal against the cylinder bore

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

Wear Rings

Guide rods and pistons to prevent uneven wear and extend the life of seals

Spring-Loaded Seals

Spring-Loaded Seals

Seal rods and pistons with a wider range of temperature and chemical resistance than U-cup seals

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Wear Ring Stock

Wear Ring Stock

Cut to make wear rings that fit any rod or bore to prevent uneven wear and extend the life of seals

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

Buffering Seals

Buffering Seals

Protect hydraulic cylinders from pressure spikes and shock in high-pressure applications

Packing Seal Lubricating Rings

Packing Seal Lubricating Rings

Install between layers of packing seals to distribute lubricants evenly; also known as lantern rings

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

Backup Rings

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

Fastening and Joining

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

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