O-Ring Pipe Fittings | McMaster-Carr

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	Thread Type Thread Type

	System of Measurement System of Measurement

	Thread Size Thread Size

	Pipe Size Pipe Size

1 1/4
1 1/2
2
2 1/2
3
4
6

	Type Type


Adapter	Plug

Reducing Adapter	Connector

Bushing	Union

Flange	Reducer

Cap

	Shape Shape


Straight	Cap/Plug

90° Elbow	Cross

Tee

	Material Material

Stainless Steel

	Connection Style Connection Style

O-Ring Face Seal

Quick Disconnect

	For Use With For Use With

	Gender Gender

	Dash Size Dash Size

	Maximum Pressure Maximum Pressure

70 psi @ 72° F

120 psi @ 72° F

140 psi @ 72° F

150 psi @ 72° F

160 psi @ 72° F

210 psi @ 72° F

230 psi @ 72° F

250 psi @ 72° F

290 psi @ 72° F

500 psi @ 72° F

1,000 psi @ 72° F

1,200 psi @ 72° F

1,400 psi @ 72° F

1,500 psi @ 72° F

1,600 psi @ 72° F

1,700 psi @ 72° F

1,800 psi @ 72° F

2,000 psi @ 72° F

2,100 psi @ 72° F

2,200 psi @ 72° F

2,300 psi @ 72° F

2,400 psi @ 72° F

2,500 psi @ 72° F

2,700 psi @ 72° F

2,900 psi @ 72° F

3,000 psi @ 72° F

3,300 psi @ 72° F

3,500 psi @ 72° F

3,600 psi @ 72° F

4,000 psi @ 72° F

4,200 psi @ 72° F

4,500 psi @ 72° F

4,600 psi @ 72° F

4,800 psi @ 72° F

5,000 psi @ 72° F

5,100 psi @ 72° F

5,400 psi @ 72° F

5,500 psi @ 72° F

5,600 psi @ 72° F

5,800 psi @ 72° F

6,000 psi @ 72° F

6,500 psi @ 72° F

6,600 psi @ 72° F

7,200 psi @ 72° F

7,500 psi @ 72° F

9,000 psi @ 72° F

9,100 psi @ 72° F

10,000 psi @ 72° F

11,000 psi @ 72° F

11,600 psi @ 72° F

15,000 psi @ 72° F

	Connection Type Connection Type


Pipe	Tube

Hose

	Specifications Met Specifications Met

ISO

SAE

DIN

ANSI

ANSI/ASME

NSF/ANSI

UL

	Length Length

	Body Shape Body Shape


Hex	Square

	Drive Style Drive Style


Hex	External Hex

Slotted

	Gasket Material Gasket Material

Fluoroelastomer Rubber

Viton® Fluoroelastomer
Rubber

	Fabrication Fabrication

	Hex Width Hex Width

	Finish Finish

	For Tube OD For Tube OD

	Schedule Schedule


40	80

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1,333 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

Iron and Steel Pipe and Pipe Fittings

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

Stainless Steel Pipe and Pipe Fittings

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Stainless steel has very good to excellent corrosion resistance.

Aluminum Pipe and Pipe Fittings

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Aluminum has good corrosion resistance and is lightweight.

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.

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.

Tube Fittings for Metal Tubing

Fittings are designed for medium- to high-pressure applications. They connect to tubing or pipe.

Hose Fittings

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

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