Metal Pipe Couplings | McMaster-Carr

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	Material Material

Stainless
Steel

	For Pipe Material For Pipe Material

Stainless
Steel

	Type Type


Connector	Adapter

Pipe	Reducer

Reducing Adapter	Bushing

Union	Cap

Plug	Clamp

Stub End	Flange

Saddle Tap	Nut

Sleeve

	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

UNJ/UNJF (Tube End)

	Shape Shape


Straight	90° Elbow

Cap/Plug	Tee

45° Elbow	Cross

Wye	70° Elbow

Manifold

	Gender Gender

	Connection Style Connection Style

Push to Connect

Quick Disconnect

O-Ring Face Seal

	Class Class

	For Use With For Use With

Abrasive Materials

Ammonium Hydroxide

Anhydrous Ammonia

Boron Trifluoride

Calcium Chloride

Carbon Monoxide

Carbonyl Sulfide

Deionized Water

Dichlorotetrafluoroethane

Ethylene Glycol

Flammable Gases

Hydraulic Fluid

Hydrochloric Acid

Hydrofluoric Acid

Hydrogen Bromide

Hydrogen Chloride

Hydrogen Iodide

Hydrogen Sulfide

Isopropyl Alcohol

Liquid Nitrogen

Medical Gas Mixtures

Methyl Chloride

Methyl Fluoride

Mineral Spirits

Oxygen Mixtures

Perfluoropropane

Pharmaceuticals

Phosphoric Acid

Plastic Pellets

Propylene Glycol

Refrigerant Gases

Silicon Tetrafluoride

Sodium Carbonate

Sodium Hydroxide

Sulfur Hexafluoride

Sulfur Tetrafluoride

Trifluoroethane

	For Pipe Schedule For Pipe Schedule


10	40

80	160

XXH

	Maximum Pressure Maximum Pressure

0.5 psi @ 72° F

15 psi @ 72° F

25 psi @ 72° F

30 psi @ 72° F

45 psi @ 72° F

50 psi @ 72° F

70 psi @ 72° F

75 psi @ 72° F

90 psi @ 72° F

100 psi @ 72° F

110 psi @ 72° F

120 psi @ 72° F

125 psi @ 72° F

130 psi @ 72° F

140 psi @ 72° F

145 psi @ 72° F

150 psi @ 72° F

160 psi @ 72° F

170 psi @ 72° F

175 psi @ 72° F

200 psi @ 72° F

215 psi @ 72° F

220 psi @ 72° F

230 psi @ 72° F

250 psi @ 72° F

270 psi @ 72° F

285 psi @ 72° F

290 psi @ 72° F

300 psi @ 72° F

345 psi @ 72° F

350 psi @ 72° F

360 psi @ 72° F

400 psi @ 72° F

435 psi @ 72° F

450 psi @ 72° F

500 psi @ 72° F

507 psi @ 72° F

530 psi @ 72° F

550 psi @ 72° F

580 psi @ 72° F

600 psi @ 72° F

610 psi @ 72° F

650 psi @ 72° F

700 psi @ 72° F

725 psi @ 72° F

750 psi @ 72° F

790 psi @ 72° F

800 psi @ 72° F

870 psi @ 72° F

900 psi @ 72° F

910 psi @ 72° F

970 psi @ 72° F

1,000 psi @ 72° F

1,080 psi @ 72° F

1,090 psi @ 72° F

1,100 psi @ 72° F

1,160 psi @ 72° F

1,200 psi @ 72° F

1,230 psi @ 72° F

1,250 psi @ 72° F

1,300 psi @ 72° F

1,340 psi @ 72° F

1,400 psi @ 72° F

1,450 psi @ 72° F

1,500 psi @ 72° F

1,510 psi @ 72° F

1,600 psi @ 72° F

1,700 psi @ 72° F

1,760 psi @ 72° F

1,800 psi @ 72° F

1,840 psi @ 72° F

1900 psi @ 72° F

1,960 psi @ 72° F

2,000 psi @ 72° F

2,030 psi @ 72° F

2,100 psi @ 72° F

2,170 psi @ 72° F

2,200 psi @ 72° F

2,210 psi @ 72° F

2,300 psi @ 72° F

2,400 psi @ 72° F

2,500 psi @ 72° F

2,600 psi @ 72° F

2,700 psi @ 72° F

2,800 psi @ 72° F

2,900 psi @ 72° F

3,000 psi @ 72° F

3,100 psi @ 72° F

3,200 psi @ 72° F

3,250 psi @ 72° F

3,300 psi @ 72° F

3,400 psi @ 72° F

3,500 psi @ 72° F

3,600 psi @ 72° F

3,700 psi @ 72° F

3,750 psi @ 72° F

3,800 psi @ 72° F

3,900 psi @ 72° F

4,000 psi @ 72° F

4,100 psi @ 72° F

4,200 psi @ 72° F

4,250 psi @ 72° F

4,300 psi @ 72° F

4,350 psi @ 72° F

4,400 psi @ 72° F

4,500 psi @ 72° F

4,600 psi @ 72° F

4,650 psi @ 72° F

4,700 psi @ 72° F

4,800 psi @ 72° F

4,900 psi @ 72° F

5,000 psi @ 72° F

5,100 psi @ 72° F

5,200 psi @ 72° F

5,250 psi @ 72° F

5,300 psi @ 72° F

5,400 psi @ 72° F

5,450 psi @ 72° F

5,500 psi @ 72° F

5,600 psi @ 72° F

5,800 psi @ 72° F

6,000 psi @ 72° F

6,100 psi @ 72° F

6,150 psi @ 72° F

6,200 psi @ 72° F

6,300 psi @ 72° F

6,400 psi @ 72° F

6,500 psi @ 72° F

6,600 psi @ 72° F

6,700 psi @ 72° F

6,800 psi @ 72° F

7,000 psi @ 72° F

7,100 psi @ 72° F

7,200 psi @ 72° F

7,300 psi @ 72° F

7,500 psi @ 72° F

7,700 psi @ 72° F

7,800 psi @ 72° F

8,000 psi @ 72° F

8,500 psi @ 72° F

9,000 psi @ 72° F

9,100 psi @ 72° F

9,500 psi @ 72° F

9,700 psi @ 72° F

10,000 psi @ 72° F

11,000 psi @ 72° F

11,600 psi @ 72° F

15,000 psi @ 72° F

3,000 psi @ 100° F

	System of Measurement System of Measurement

	Length Length

	Connection Type Connection Type


Pipe	Tube

Hose

	Finish Finish

Black Zinc Plated

Black Nickel Plated

	Specifications Met Specifications Met

	Threading Threading

Threaded on Both Ends

Threaded on One End

	For Tube Material For Tube Material

Stainless
Steel

	Sleeve Material Sleeve Material

Stainless
Steel

	Clamp Material Clamp Material

Stainless Steel

	Socket Material Socket Material

Stainless Steel

	Plug Material Plug Material

Stainless Steel

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24,472 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.

More

Pipe, Tubing, Hose, and Fittings

Stainless Steel Pipe and Pipe Fittings

Stainless steel has very good to excellent corrosion resistance.

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.

Brass and Bronze
Pipe and Pipe Fittings

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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.

Titanium Threaded Pipe Fittings

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

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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

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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.

Clamp-On Connectors

Clamp-On Connectors

Use these to connect plastic or metal pipe of the same or different materials. Tighten the bands to form a strong seal.

Hose and Hose Fittings

Tubing and Tube Fittings

Flow Sights

Flow Sights

Flow Sights

Visually confirm flow and inspect your process media.

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