Blue Gaskets | McMaster-Carr

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For Flange ANSI Class

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Diluted Salt Solutions

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1,000 psi to 1,999 psi

3,000 psi to 9,999 psi

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Performance

Electrically Insulating

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Export Control Classification Number (ECCN)

EAR99

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1,024 Products

Sealing

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

192 products

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

76 products

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

38 products

Made-to-Order Gaskets

Send your exact specifications to get gaskets that fit precisely between surfaces

4 products

Hose Coupling Gaskets

Form tight seals on cam-and-groove, grip-lock, and twist-claw hose connections

11 products

Gasket Makers

Seal irregular shapes and tiny crevices by applying a bead that hardens into a gasket

7 products

Edge Seals

Block dust, water, and wind from entering the gaps around doors and windows

5 products

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

40 products

Head Seals

Maintain a seal even under fluctuating pressure; more reliable than an O-ring with a backup ring

11 products

Piston Seals

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

11 products

Sealants

Fill and seal gaps in metal, plastic, wood, and other materials

7 products

O-Rings

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

198 products

Raw Materials

Rubber

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

140 products

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

70 products

Building and Machinery Hardware

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

5 products

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

9 products

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

30 products

Fastening and Joining

Sealing Washers

Prevent fluids from leaking around fasteners

54 products

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

25 products

Fabricating and Machining

Utility Knives

Make quick, shallow cuts; often used to open boxes and packages

3 products

Miter Angle Cutters

Make cuts at precise angles; use on weatherstripping, dowels, and trim for door and window frames

1 product

Precision Knives

Make exact cuts in paper, plastic, fabric, and other materials

4 products

Heating, Ventilation, and Air Conditioning

Pipe Insulation

Fit around pipe, tubing, and tanks to reduce heat loss or condensation

3 products

Electrical

Wire Sleeving

Bundle wiring and protect from abrasion and heat

10 products