Aluminum Reducers | McMaster-Carr

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Material

304 Stainless Steel

Pipe Material

Stainless Steel

Fitting Type

Reducing Adapter

System of Measurement

Pipe Size

Thread Type

UN/UNF (SAE Straight)

Shaft Diameter

Shape

Thread Size

Length

OD

Gender

Fitting Connection

Spec Image

Spec Image

Quick Disconnect

Spec Image

For Use With

Hydraulic Fluid

ID

Screw Size

DFARS Specialty Metals

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

REACH

Pipe Schedule

Connects To

Shaft Type

Flange Material

Fitting Material

Thread Material

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3,146 Products

Fluid Handling

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Spacers

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

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Rivet Nuts

Add threads to thin panels with access from only one side; also known as blind inserts

Tape

Bind, seal, and mark surfaces

Power Transmission

Bore Reducers

Adapt the bore of a component to a smaller size for mounting on a shaft

Shaft Couplings

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

Torque Limiters

Torque Limiters

Keep torque at or below a set limit to control tension or braking or protect machinery from overload

Heating, Ventilation, and Air Conditioning

Duct and Duct Fittings

Duct and Duct Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

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