Schedule 40 Unions | McMaster-Carr

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	Type Type	Show

Union

	Type Type	Hide

	Pipe Size Pipe Size

	Thread Type Thread Type

BSPP

BSPT

NPT

	Material Material

	For Use With For Use With

	For Pipe Schedule For Pipe Schedule	Show

	For Pipe Schedule For Pipe Schedule	Hide

160

XXH

	Connection Style Connection Style

Threaded

Socket Connect

Clamp On

	For Pipe Material For Pipe Material

	Shape Shape

	Straight
	90° Elbow
	270° Bend

	Class Class

125

150

1000

	Gender Gender

Female

Male

	Connection Type Connection Type


Pipe	Tube

	Maximum Pressure Maximum Pressure

	Finish Finish

	System of Measurement System of Measurement

Inch

Metric

	Length Length

	Body Shape Body Shape

Hex

Octagon

	Maximum Steam Pressure Maximum Steam Pressure

	Specifications Met Specifications Met

International Fuel Gas Code

Mil. Spec.

NSF/ANSI

SAE

Uniform Mechanical Code

UPC

	Hex Width Hex Width

	Schedule Schedule

	40

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

DFARS Specialty Metals
COTS-Exempt

	Color Color

	White
	Black

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254 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Low-Pressure Stainless Steel Threaded Pipe Fittings

Use these corrosion-resistant fittings in a low-pressure pipe line.

Medium-Pressure Stainless
Steel Threaded Pipe Fittings

Choose these fittings when you want the same high-quality found in our low-pressure pipe fittings, but need more strength to handle higher pressures.

Low-Pressure Socket-Connect Stainless
Steel Unthreaded Pipe Fittings

Socket-connect fittings are easier to weld than butt-weld fittings because the fitting doesn't need to align perfectly to the pipe. Slip the pipe into the socket and weld.

Low-Pressure Press-Connect Stainless
Steel Unthreaded Pipe Fittings

Press these fittings onto stainless steel pipe using a crimping tool for a permanent, leak-tight connection that's faster than threading or welding and doesn't require heat.

Low-Pressure Iron and Steel Threaded Pipe Fittings

Use these fittings for low-pressure applications in noncorrosive environments.

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

The galvanized finish on these fittings provides fair corrosion resistance. Fittings are for use in low-pressure applications.

Low-Pressure Press-Connect
Steel Unthreaded Pipe Fittings

Crimp these fittings onto steel pipe to form a tightly sealed connection that’s faster than threading or welding and doesn’t require heat.

Low-Pressure Brass and Bronze Threaded Pipe Fittings

Use these fittings in low-pressure flow applications. They have good corrosion resistance.

Low-Pressure Plated Brass Threaded Pipe Fittings

Used in low-pressure pipe lines, these brass fittings have a plating that makes them shiny and improves corrosion resistance.

Bronze Unthreaded Pipe Fittings

Also known as Silbraze fittings.

Low-Pressure Aluminum Threaded Pipe Fittings

In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications.

Standard-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 40 plastic pipe—they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.

Drain, Waste, and Vent ABS Pipe Fittings for Chemicals

These fittings are an economical option for chemical waste systems. Fittings are ABS plastic, which has excellent strength and impact resistance and good chemical resistance.

Aboveground Standard-Wall PVC Pipe
Fittings for Drain, Waste, and Vent

These Schedule 40 fittings are the industry standard for gravity-flow drain, waste, and vent (DWV) applications.

How to Identify and Measure Fittings

Pipe and Pipe Fittings