O-Ring Gaskets | McMaster-Carr

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System of Measurement

ID

Width

Cross Section Shape

OD

Dash Number

Material

321 Stainless Steel

Hardness

Color

Hardness Rating

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Liquid Insecticides

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Fractional Width

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 399° F

400° F to 499° F

500° F or greater

Fractional ID

Core Material

Silicone Rubber

Viton® Fluoroelastomer

Fractional OD

Minimum Temperature

-100° F or less

-99° F to -50° F

-49° F to -25° F

-24° F to 0° F

Greater than 0° F

Specifications Met

REACH

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Food Industry Standard

3-A Sanitary Standard

Thickness

Environment

Food and Beverage

Core Color

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11,312 Products

Sealing

O-Rings

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

10,708 products

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

Fluid Handling

Tube Fitting Rings

Tube Fitting Rings

Prevent leaks at tubing connection points

Measuring and Inspecting

O-Ring Gauges

Identify the size of your O-ring

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