Valve Seals | McMaster-Carr

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System of Measurement

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Width

Cross Section Shape

OD

Dash Number

Material

Stainless Steel

Hardness

Color

Hardness Rating

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Liquid Insecticides

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

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

Core Material

Fractional Width

Fractional ID

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

Fractional OD

Specifications Met

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

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

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14,661 Products

Sealing

O-Rings

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

13,865 products

Backup Rings

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

Packing Seals

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

Fluid Handling

Valve Repair Kits

Valve Repair Kits

Maintain valves with replacement parts such as seals, plungers, and springs

Tube and Tube Fittings

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Facility and Grounds Maintenance

Flush Valve Replacement Parts

Flush Valve Replacement Parts

Replace virtually any part in the most common flush valve brands

Raw Materials

Rubber

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

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