Aluminum Reducers | McMaster-Carr

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Compliant with Exemptions

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Yes

DFARS Specialty Metals

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5,641 Products

Fluid Handling

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

207 products

Hose Fittings

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

57 products

Manifolds

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

410 products

Tube Fittings

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

20 products

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

7 products

Vacuum-Regulating Valves

Control the amount of air that a vacuum pump draws from your system to maintain vacuum levels

2 products

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

2 products

Air-Exhaust Valves

Vent or divert exhaust to speed up the operation of air cylinders, actuators, and other equipment

6 products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

585 products

Threaded Inserts

Create new threads or repair stripped threads

1,092 products

Rivet Nuts

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

86 products

Spacers

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

377 products

Power Transmission

Gear Boxes

Transmit rotary motion without changing speed, or reduce speed while increasing torque

85 products

Shaft Couplings

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

1,094 products

Bore Reducers

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

6 products

Compressed Air Regulators

Ensure continuous, safe operation of air-powered equipment by controlling air pressure

376 products

Compressed Air Filter/Regulator/Lubricators

Deliver clean, lubricated air at the desired pressure to a component in your line

81 products

Compressed Air Filter/Regulators

Simultaneously clean air that's running through a system and control its pressure

163 products

Compressed Air Filters

Purge particles, oil, and other contaminants from air lines to prevent damaging equipment

250 products

Compressed Air Filter/Regulator Manifolds

Purify air from a single supply and distribute it to multiple locations

13 products

Safety Lockout Valves

Prevent accidental start-up when servicing equipment

30 products

Compressed Air Regulator Manifolds

Use a single air supply to meet multiple pressure requirements

56 products

Torque Limiters

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

15 products

Electrical Power, Networking, and Controlling

Power Supplies

Convert your facility's AC voltage to power equipment that runs on DC voltage

31 products

Power Converters

Connect power supplies to equipment that requires a different input voltage

22 products

Power Receptacles

Install in a wall or panel to transmit power to plugs or sockets

4 products

Heating, Ventilation, and Air Conditioning

Duct Straights

Connect lengths of duct in a straight line

2 products

Building and Machinery Hardware

Acoustic Insulation

Absorb sound to quiet noisy areas and machines

4 products

Vibration-Damping Sheets and Tape

Stick to vibrating surfaces such as duct, between parts, or on floor joists to reduce noise

3 products

Sound Barrier Sheets

Block and reflect noise to keep it from reaching other parts of your facility

2 products