Sixtube | McMaster-Carr

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Fitting Connection

Barbed

Push to Connect

Quick Disconnect

System of Measurement

Tube OD

Material

Quick-Disconnect Component

REACH

Coupling Locking Type

Color

Hardness

Durometer 45A to Durometer 90A

Durometer 91A to Durometer 97A

RoHS

Compliant

Compliant with Exemptions

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Tube Hardness Rating

Tube Material

Hole Diameter

Body Material

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

For Tube Hardness

Durometer 45A to Durometer 90A

Durometer 91A to Durometer 97A

Mated Length

Mated OD

Maximum Pressure @ Temperature

Maximum Temperature

Maximum Vacuum @ Temperature

Minimum Temperature

Gender

6 Products

About Measuring Fittings

Measure the threaded ends of your fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Multiline Quick-Disconnect Tube Couplings for Air

Don’t get your lines crossed—use one of these couplings to quickly connect or disconnect multiple tubes at once. They keep tubes organized and optimize space in tight spots. Often used in robotics, these couplings are ideal for complex pneumatic systems.

Through-wall couplings allow you to connect and disconnect air lines on a panel or machine. This is useful when you are going to transport and reconnect your equipment on site.

Barbed-connect fittings are for soft tubing. Push-to-connect fittings are for firm and hard tubing. Also known as instant fittings. To connect to tubing, insert the tube into the fitting—an internal gripping ring and O-ring hold the fitting in place. To disconnect, push on the release ring and pull the tubing out of the fitting.

Keyed couplings prevent mixing and matching the wrong lines, since they’ll only connect with a plug or socket that is keyed the same.

For a complete coupling, order a plug and a socket with the same coupling size.

Round Through-Wall Barbed Tube—Press Latch Coupling Lock

Non-Swivel Plug

Non-Swivel Socket

Maximum Pressure: 100 psi @ 72° F
Temperature Range: -40° to 180° F
Tubing: Use with soft or firm (Durometer 45A-90A) polyurethane rubber or PVDF plastic

Connect the coupling with a push and disconnect by pressing the latch. Made of plastic, these couplings are lighter in weight than brass couplings.

				Mated
For Tube ID	No. of Connections	Material	Max. Vacuum	OD	Lg.	For Hole Dia.	For Max. Wall Thick.	Features		Each
Plugs
Non-Swivel
1/8"	6	Acetal Plastic	24 in. of Hg @ 72° F	1 21/32"	2 7/32"	1 13/64"	1/8"	Keyed Connections	7141N18	000000
Sockets
Non-Swivel
1/8"	6	Acetal Plastic	24 in. of Hg @ 72° F	1 21/32"	2 7/32"	1 13/64"	1/8"	Keyed Connections	7141N16	00000

Round Through-Wall Push-to-Connect Tube—Clamping Ring Coupling Lock

Set

Cover

Clamp Ring

Maximum Pressure: 145 psi @ 72° F
Temperature Range: 25° to 140° F
Tubing: Use with firm or hard (Durometer 91A-97A) nylon plastic or polyurethane rubber

Tighten the built-in clamping ring to lock the couplings together. To disconnect, loosen the clamping ring and then pull the couplings apart while rotating. Made of brass, these couplings are more durable than plastic couplings and have good corrosion resistance.

Sets
			Mated						Replacement Covers		Replacement Clamp Rings
For Tube OD, mm	No. of Connections	Material	OD	Lg.	For Hole Dia.	Features		Each		Each		Each
4	6	Nickel-Plated Brass	1 47/64"	1 7/32"	1 29/64"	Keyed Connections	7141N44	000000	7141N48	00000	7141N51	00000
6	6	Nickel-Plated Brass	1 47/64"	1 7/32"	1 29/64"	Keyed Connections	7141N45	00000	7141N48	0000	7141N51	0000