Chemical-Resistant O-Rings | McMaster-Carr

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System of Measurement

ID

Width

Cross Section Shape

OD

Material

Aramid/PTFE Fiber

Stainless Steel

Color

Dash Number

Hardness

Maximum Temperature

Less than 300° F

300° F to 399° F

400° F to 499° F

500° F or greater

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Hardness Rating

Fractional Width

Fractional ID

Minimum Temperature

-250° F or less

-249° F to -100° F

-99° F to -50° F

-49° F to 0° F

Greater than 0° F

Export Control Classification Number (ECCN)

DFARS Specialty Metals

RoHS

REACH

Fractional OD

Specifications Met

Thickness

0.019" to 0.043"

0.021" to 0.041"

0.026" to 0.036"

0.035" to 0.045"

0.035" to 0.070"

0.042" to 0.052"

0.045" to 0.055"

0.052" to 0.072"

0.059" to 0.069"

0.068" to 0.078"

0.068" to 0.088"

Screw Size

Food Industry Standard

3-A Sanitary Standard

Environment

Food and Beverage

Seal ID

How can we improve?

3,483 Products

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

Packing Seals

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

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

Spring-Loaded Seals

Spring-Loaded Seals

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

Fastening and Joining

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Power Transmission

Round Belts

Flexible to send rotary power between unparallel shafts

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