Copper Washers | McMaster-Carr

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	Material Material

Beryllium Copper

Copper

Iron-Copper

	System of Measurement System of Measurement

Inch

Metric

	ID ID

	OD OD

	Thickness Thickness

	For Screw Size For Screw Size

	Washer Type Washer Type

	Flat

	Specifications Met Specifications Met

	Hardness Hardness

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	For Shaft Diameter For Shaft Diameter

	Shape Shape

	Ring

	Magnetic Properties Magnetic Properties

Nonmagnetic

	For OD For OD

	Individual/Set Individual/Set

Individual

	Finish Finish

Cadmium Plated

	For Groove Diameter For Groove Diameter

	Retaining Ring Style Retaining Ring Style


Standard	Side Mount

	Retaining Ring Type Retaining Ring Type

	External
	Internal

	Ring ID Ring ID

	Bearing Type Bearing Type

	Plain

	Lubrication Lubrication

Lubricated

	Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity

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296 Products

Washers

General Purpose Washers

Metric General Purpose Washers

Use these metric washers to evenly distribute the load under bolt or screw heads and nuts when fastening. They can also act as spacers.

Mil. Spec. Washers

Choose these washers for their adherence to strict military standards for material and construction.

SAE Washers

SAE washers generally have a smaller ID and OD than USS washers.

Metal Sealing Washers

Also known as crush washers, these compress when tightened to form a tighter, more durable seal than rubber washers. They are commonly used to seal fluids such as oil and fuel.

Ring Shims

Precisely align, level, and adjust spacing on fasteners and shafts with these shims.

Retaining Rings

External Retaining Rings

Open these rings, pass them over the end of a shaft, and release to spring into the groove.

Side-Mount External Retaining Rings

Also known as E-style rings.

Heavy Duty Side-Mount External Retaining Rings

These rings are reinforced to withstand faster rotation than other side-mount retaining rings. Also known as reinforced E-style rings.

Internal Retaining Rings

Squeeze these rings to place them in the groove inside a bore or housing.

High-Load Oil-Embedded Thrust Bearings

Increased iron content makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings; however they operate at lower speeds.

Extended-Reach Air Nozzles

The extra length allows access into hard-to-reach areas.