Pipe-to-Pipe Adapters | McMaster-Carr

	Pipe Size Pipe Size

1/16
1/8
1/4
3/8
1/2
5/8
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
10
12

	Thread Type Thread Type

UN/UNF (SAE Straight)

UNF

Universal

UNS

	Type Type


Reducing Adapter	Bushing

Adapter	Connector

Reducer	Pipe

Union	Stub End

Outlet	Clamp

Flange	Plug

Saddle Tap	Cap

Nut	Trap

	Material Material

	Shape Shape


Straight	90° Elbow

Tee	Manifold

45° Elbow	Cross

Junction Block	Wye

Cap/Plug	Cut-to-Angle Elbow

11 1/4° Elbow	22 1/2° Elbow

70° Elbow	180° Bend

270° Bend	Double Wye

Side-Outlet Elbow

	Connection Style Connection Style

	For Use With For Use With

Dichlorotetrafluoroethane

Hydrochloric Acid (30%)

Silicon Tetrafluoride

	System of Measurement System of Measurement

Inch

Metric

	Length Length

	Gender Gender

Female

Male

	Threading Threading

Threaded on Both Ends

Fully Threaded

Unthreaded

Threaded on One End

	Schedule Schedule


10	40

80	160

XXH

	Connection Type Connection Type


Pipe	Hose

Tube

	For Pipe Material For Pipe Material

	Maximum Pressure Maximum Pressure

	For Pipe Schedule For Pipe Schedule


10	40

80	160

XXH

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

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Specifications Met Specifications Met

	For Hose ID For Hose ID

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	ID ID

	Finish Finish

Zinc-Phosphate Coated

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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.

Stainless Steel Pipe and Pipe Fittings

Stainless steel has very good to excellent corrosion resistance.

Brass and Bronze Pipe and Pipe Fittings

Brass and bronze have good corrosion resistance. They are often used in drinking water and plumbing applications. Brass and bronze are compatible and can be used interchangeably.

Iron and Steel Pipe and Pipe Fittings

Iron and steel are more economical than stainless steel. They are compatible and can be used interchangeably.

Aluminum Pipe and Pipe Fittings

Aluminum has good corrosion resistance and is lightweight.

Titanium Threaded Pipe Fittings

Titanium has similar strength to steel, but is approximately 40% lighter. It has better corrosion resistance than most stainless steel alloys and can handle corrosive substances, such as salt water and acids.

Copper-Nickel Pipe and Pipe Fittings

Copper-nickel has excellent resistance to stress cracking and has better corrosion resistance than most stainless steel alloys. It can stand up to corrosive environments, such as salt water applications.

Plastic Pipe and Pipe Fittings

Plastic pipe and pipe fittings are lighter in weight than metal pipe and pipe fittings. They are typically for low- to medium-pressure applications up to 1,000 psi.

Manifolds

Also known as headers, manifolds allow you to distribute air or fluid to multiple locations from a single supply source.

Junction Blocks

Use junction blocks to organize and separate multiple lines in your system. They have threaded holes that allow air or fluid to flow straight through the block.

Hose Fittings

Connect these fittings to lengths of hose. Hose fittings are typically used in high-flow, suction, and hydraulic applications.