Food-Grade Seals | McMaster-Carr

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Environment

Food and Beverage

Food Industry Standard

3-A Sanitary Standard

Color

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Material

Stainless Steel

System of Measurement

Width

ID

Maximum Temperature

Less than 500° F

500° F to 999° F

1,000° F to 1,999° F

Thickness

0.019" to 0.043"

0.021" to 0.041"

Hardness Rating

OD

Seal Width

Hardness

Backing Type

Cross Section Shape

Shape

Ring with Bolt Holes

Rod Diameter

Minimum Temperature

-250° F or less

-199° F to -100° F

-99° F to 0° F

Greater than 0° F

Length

DFARS Specialty Metals

RoHS

REACH

Export Control Classification Number (ECCN)

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4,781 Products

Most Likely Products

Edge Seals

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

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Tube Fitting Gaskets

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

O-Rings

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

Piston Seals

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

Rubber

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

All Results

Sealing

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

Piston Seals

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

Buffering Seals

Buffering Seals

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

Packing Seals

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

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

U-Cup Seals

With a lip on both the inside and outside edges, they can be used for sealing rods and pistons

Edge Seals

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

Tube Fitting Gaskets

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

Hose Coupling Gaskets

Hose Coupling Gaskets

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

Gasket Material

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

Gasket Tape

Stick in place around doors, enclosures, and vents to create a leak-resistant seal

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

Manway Gaskets

Create a tight seal between the nozzle and lid of tank car manways

Hose Washers

Place inside nozzles and spigots to prevent leaks in an attached hose

Gasket Makers

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

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

Thread Sealants

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

Sealants

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

Raw Materials

Rubber

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

Foam

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

Fastening and Joining

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Tape

Bind, seal, and mark surfaces

Adhesives

Bond surfaces together

Threadlockers

Coat threads on threaded fasteners to prevent loosening from impact and vibration

Adhesive Primers

Adhesive Primers

Prepare surfaces before adding adhesives to improve bonding strength

Retaining Compounds

Retaining Compounds

Fill gaps to bond shafts, bearings, press-fit assemblies, and other cylindrical metal parts

Building and Machinery Hardware

Edge Trim

Install on panels, boards, signs, and mirrors to protect edges from impact

Grommets

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

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Facility and Grounds Maintenance

Surface Fillers

Surface Fillers

Repair chips, cracks, and tears in various surfaces

Protective Coatings

Protective Coatings

Shield surfaces from the surrounding environment

Electrical

Electrical Enclosure Plugs

Electrical Enclosure Plugs

Block or seal holes in outlet boxes and enclosures to keep out debris, dust, and moisture

Wire Sleeving

Bundle wiring and protect from abrasion and heat

Fluid Handling

Gauge Guards

Shield gauges from corrosive liquids and gases; also called diaphragm seals

Tube and Tube Fittings

Tube and Tube Fittings

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

Hose and Hose Fittings

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Material Handling

Conveyor Brushes

Conveyor Brushes

Position items on conveyor belts and wipe off debris

Screw Conveyors

Screw Conveyors

Push material through fixed troughs

Safety Equipment

Bearing Guards

Shield bearings from dirt, and protect fingers and tools from moving parts

Communication

Tamper-Evident Seals

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

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