Plastic Reducers | McMaster-Carr

Filter by

Material

Pipe Material

Fitting Type

Fitting Connection

System of Measurement

Pipe Size

Shape

Pipe Schedule

Gender

Thread Type

UN/UNF (SAE Straight)

Connects To

For Use With

Grinders for Bits and Burs

Handheld Power Drills

Color

Flange Material

Tube ID

Length

RoHS

Compliant with Exemptions

Not Compliant

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

Tube Material

Fitting Material

Finish

Zinc Yellow-Chromate Plated

For Use In

Sleeve Material

300 Series Stainless Steel

4,585 Products

Fluid Handling

Pipe Fittings

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

1,307 products

Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

7 products

Pipe Flanges

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

6 products

Pipe Fitting Clamps

Connect easy-access and grooved-end pipe fittings to pipe

3 products

Pipe Plugs

Insert into the ends of pipe to keep out dirt and debris

5 products

Tube Fittings

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

840 products

Tube End Plugs

Insert into the ends of tube to keep out dirt and debris

6 products

Hose Fittings

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

107 products

Manifolds

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

33 products

Pressure-Regulating Valves

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

161 products

Pressure-Relief Valves

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

6 products

Vacuum-Regulating Valves

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

2 products

Diverting Valves

Redirect flow between ports

2 products

Electrical

Conduit-to-Conduit Connectors

Join pieces of conduit

15 products

Electrical Receptacles

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

59 products

Power Supplies

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

77 products

EMI Filters

Shield electronics against electromagnetic interference from power supplies, motors, and lights

12 products

Fastening and Joining

Threaded Inserts

Create new threads or repair stripped threads

854 products

Rivet Nuts

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

100 products

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

20 products

Unthreaded Inserts

Reinforce, align, and adjust joints as you tighten a fastener

37 products

Spacers

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

136 products

Tape

Bind, seal, and mark surfaces

27 products

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

4 products

Heating, Ventilation, and Air Conditioning

Duct and Fittings

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

25 products

Safety Equipment

Vibration-Damping Sheets

Stick to duct, housings, and other vibrating equipment to reduce noise

10 products

Sound Barrier Partitions

Stand in noisy areas to block and reflect sound

1 product

Acoustic Insulation

Absorb sound to quiet noisy areas and machines

50 products

Sound Barrier Sheets

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

9 products

Respirator Filter Monitors

Track the quality of incoming air as it travels from your air line to your respirator

2 products

Power Transmission

Compressed Air Filter/Regulator/Lubricators

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

55 products

Compressed Air Filter/Regulators

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

117 products

Compressed Air Filters

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

5 products

Compressed Air Filter/Regulator Manifolds

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

4 products

Compressed Air Regulators

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

17 products

Shaft Couplings

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

42 products

Torque Limiters

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

14 products

Facility and Grounds Maintenance

Water Hammer Arresters

Absorb shock of sudden shutoffs to prevent knocking noises in water pipes

1 product

Building and Machinery Hardware

Ceiling Tile Sound Barriers

Lay over ceiling tiles to block sound

1 product

Ceiling Tiles

Create a new drop ceiling that allows access to pipes and wiring

8 products

Fabricating and Machining

Grinding Wheel Reducer Bushings

Connect grinding wheels to shanks with a smaller diameter

3 products

Wheel Brush Arbor Hole Reducers

Adjust arbor hole size so it'll fit the shaft of your tool

2 products