CPC Couplings | McMaster-Carr

Filter by

Clarity

Color

Connects To

Coupling Size

DFARS Compliance

Fitting Connection

For Use With

Gender

Material

System of Measurement

Maximum Pressure @ Temperature

Maximum Temperature

Minimum Temperature

Quick-Disconnect Component

Shape

RoHS Compliance

Plug OD

Length

Flow Control Type

O-Ring Material

Tube Material

Number of Barbs

For Tube Hardness

Forward

How can we improve?

275 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.

Lighter in weight than their metal counterparts, these quick-disconnect couplings are plastic. They consist of a plug and a socket that allow you to frequently connect and disconnect your line.

Latch-lock sockets disconnect by pressing the latch.

Twist-lock sockets connect and disconnect with a twist and do not have a latch.

Acetal plugs and sockets are moisture resistant, so they won’t absorb water and lose strength, even in high-humidity environments. Polypropylene plugs and sockets are moisture resistant and have excellent impact resistance.

Plug and Sockets with shut-off have a valve to stop the flow when the coupling is separated, so air or water won’t spill from your line.

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

For technical drawings and 3-D models, click on a part number.

Plug and Socket Sets, Barbed Tube

Temperature Range: -40° to 180° F
Tubing: Use with soft or firm (Durometer 70A-85A) polyurethane rubber

Barbed plugs and sockets insert into tubing.

					With Shut-Off
For Tube ID	Material	Color	Max. Pressure	Socket Locking Type		Each
1/8"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	000000
1/4"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
3/8"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000

Plug and Socket Sets, Barbed Hose

Temperature Range: -40° to 180° F
Tubing: Use with soft or firm (Durometer 70A-85A) polyurethane rubber

Barbed plugs and sockets insert into tubing.

					With Shut-Off
For Hose ID	Material	Color	Max. Pressure	Socket Locking Type		Each
5/16"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	000000

Plug and Socket Sets, Compression Tube × Male Threaded Pipe

Temperature Range: -40° to 180° F
Tubing: Use with firm or hard (Durometer 85A-60D) nylon plastic or polyethylene plastic

Compression plugs and sockets have a sleeve (ferrule) that compresses the tubing and forms a seal when you tighten the nut.

						With Shut-Off
For Tube OD	Pipe Size	Material	Color	Max. Pressure	Socket Locking Type		Each
1/4"	1/4	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	000000
1/4"	1/8	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
3/8"	3/8	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000

Plug and Socket Sets, Compression Tube

Temperature Range: -40° to 180° F
Tubing: Use with firm or hard (Durometer 85A-60D) nylon plastic or polyethylene plastic

Compression plugs and sockets have a sleeve (ferrule) that compresses the tubing and forms a seal when you tighten the nut.

					With Shut-Off
For Tube OD	Material	Color	Max. Pressure	Socket Locking Type		Each
1/4"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	000000
3/8"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000

Plug and Socket Sets, Push-to-Connect Tube

Temperature Range: -40° to 180° F
Tubing: Use with firm or hard (Durometer 95A-60D) nylon plastic, polyethylene plastic or polyurethane rubber

Push-to-connect plugs and sockets are also known as instant fittings. To connect, insert tubing 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.

					With Shut-Off
For Tube OD	Material	Color	Max. Pressure	Socket Locking Type		Each
1/4"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	000000
3/8"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000

Plug and Socket Sets, Male Threaded Pipe × Barbed Tube

Temperature Range: -40° to 180° F
Tubing: Use with soft or firm (Durometer 70A-85A) polyurethane rubber

Barbed plugs and sockets insert into tubing.

						With Shut-Off
Pipe Size	For Tube ID	Material	Color	Max. Pressure	Socket Locking Type		Each
NPT Threads
1/8	1/8"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	000000
1/4	1/4"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
3/8	3/8"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000

Plug and Socket Sets, Male Threaded Pipe

Temperature Range: -40° to 180° F

					With Shut-Off
Pipe Size	Material	Color	Max. Pressure	Socket Locking Type		Each
NPT Threads
1/8	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	000000
1/4	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
3/8	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000

Plugs, Barbed Tube

Temperature Range: -40° to 180° F
Tubing: Use with soft or firm (Durometer 70A-85A) polyurethane rubber

Barbed plugs and sockets insert into tubing. Those with collar do not require a clamp and limit the size of the tubing to a maximum of 1/8” OD.

Open Flow
Coupling Size	Plug OD	For Tube ID	Barbed Connection Type	Material	Color	Max. Pressure		Each
3/32	1/4"	1/16"	Collar	Acetal Plastic	White	100 psi @ 72° F	00000000	00000
3/32	1/4"	1/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	00000000	0000
1/8	5/16"	1/16"	Collar	Acetal Plastic	White	100 psi @ 72° F	0000000	0000
1/8	5/16"	1/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	0000000	0000
1/8	5/16"	3/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	00000000	0000
1/8	5/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	0000000	0000
1/4	7/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	0000000	0000
1/4	7/16"	5/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	00000000	0000
1/4	7/16"	3/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	0000000	0000
With Shut-Off
1/8	5/16"	1/16"	Collar	Acetal Plastic	White	100 psi @ 72° F	0000000	00000
1/8	5/16"	1/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	0000000	00000
1/8	5/16"	3/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	00000000	00000
1/8	5/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	0000000	00000
1/4	7/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	0000000	00000
1/4	7/16"	5/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	00000000	00000
1/4	7/16"	3/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	0000000	00000

Plugs, Barbed Hose

Temperature Range: 32° to 160° F

Barbed plugs and sockets insert into tubing.

						Open Flow		With Shut-Off
Coupling Size	Plug OD	For Hose ID	Material	Color	Max. Pressure		Each		Each
3/8	3/4"	5/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	000000	00000000	000000
3/8	3/4"	3/4"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	0000000	00000

Through-Wall Plugs, Barbed Tube

Temperature Range: -40° to 180° F
Tubing: Use with soft or firm (Durometer 70A-85A) polyurethane rubber

Barbed plugs and sockets insert into tubing. Those with collar do not require a clamp and limit the size of the tubing to a maximum of 1/8” OD.

Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.

Open Flow
Coupling Size	Plug OD	For Tube ID	Barbed Connection Type	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
3/32	1/4"	1/16"	Collar	Acetal Plastic	White	100 psi @ 72° F	7/16"	13/64"	00000000	00000
3/32	1/4"	1/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	7/16"	13/64"	00000000	0000
1/8	5/16"	1/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	19/64"	0000000	00000
1/8	5/16"	3/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	19/64"	0000000	00000
1/8	5/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	19/64"	0000000	00000
1/4	7/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	11/16"	19/64"	0000000	0000
1/4	7/16"	3/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	11/16"	19/64"	0000000	00000
With Shut-Off
1/8	5/16"	1/16"	Collar	Acetal Plastic	White	100 psi @ 72° F	1/2"	19/64"	0000000	00000
1/8	5/16"	1/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	19/64"	0000000	00000
1/8	5/16"	3/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	19/64"	0000000	00000
1/8	5/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	19/64"	0000000	00000
1/4	7/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	11/16"	19/64"	0000000	00000
1/4	7/16"	3/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	11/16"	19/64"	0000000	00000

Plugs, Compression Tube

Temperature Range: -40° to 180° F
Tubing: Use with nylon plastic or polyethylene plastic, see table for hardness

							For Tube
Coupling Size	Plug OD	For Tube ID, mm	For Tube OD	Material	Color	Max. Pressure	Hardness Rating	Hardness		Each
Open Flow
1/8	5/16"	__	5/32"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	00000000	00000
1/8	5/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	0000000	0000
1/8	5/16"	2	4mm	Acetal Plastic	White	100 psi @ 72° F	__	__	00000000	0000
1/4	7/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	00000000	0000
1/4	7/16"	__	3/8"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	0000000	0000
With Shut-Off
1/8	5/16"	__	5/32"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	00000000	00000
1/8	5/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	0000000	00000
1/8	5/16"	__	3/8"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	0000000	00000
1/8	5/16"	2	4mm	Acetal Plastic	White	100 psi @ 72° F	__	__	00000000	00000
1/4	7/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	00000000	00000
1/4	7/16"	__	3/8"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	0000000	00000

Through-Wall Plugs, Compression Tube

Temperature Range: -40° to 180° F
Tubing: Use with firm or hard (Durometer 85A-60D) nylon plastic or polyethylene plastic

Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.

Open Flow
Coupling Size	Plug OD	For Tube OD	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
1/8	5/16"	1/4"	Acetal Plastic	White	100 psi @ 72° F	1/2"	19/64"	00000000	000000
1/4	7/16"	1/4"	Acetal Plastic	White	100 psi @ 72° F	11/16"	19/64"	00000000	00000
1/4	7/16"	3/8"	Acetal Plastic	White	100 psi @ 72° F	11/16"	19/64"	00000000	00000
With Shut-Off
1/8	5/16"	1/4"	Acetal Plastic	White	100 psi @ 72° F	1/2"	19/64"	00000000	00000
1/4	7/16"	1/4"	Acetal Plastic	White	100 psi @ 72° F	11/16"	19/64"	00000000	00000
1/4	7/16"	3/8"	Acetal Plastic	White	100 psi @ 72° F	11/16"	19/64"	00000000	00000

90° Elbow Plugs, Compression Tube

Temperature Range: -40° to 180° F
Tubing: Use with nylon plastic or polyethylene plastic

							Open Flow
Coupling Size	Plug OD	For Tube ID, mm	For Tube OD	Material	Color	Max. Pressure		Each
1/8	5/16"	2.5	4mm	Acetal Plastic	White	100 psi @ 72° F	00000000	00000

Plugs, Push-to-Connect Tube

Temperature Range: -40° to 180° F
Tubing: Use with firm or hard (Durometer 95A-60D) nylon plastic, polyethylene plastic or polyurethane rubber

						Open Flow		With Shut-Off
Coupling Size	Plug OD	For Tube OD	Material	Color	Max. Pressure		Each		Each
1/4	7/16"	1/4"	Acetal Plastic	White	100 psi @ 72° F	00000000	000000	00000000	000000
1/4	7/16"	3/8"	Acetal Plastic	White	100 psi @ 72° F	00000000	00000	00000000	00000

Plugs, Male Threaded Pipe

Temperature Range: -40° to 180° F; Polypropylene Plastic Fittings are 32° to 160° F

Open Flow
Coupling Size	Plug OD	Pipe Size	Material	Color	Max. Pressure		Each
NPT Threads
1/8	5/16"	1/8	Acetal Plastic	White	100 psi @ 72° F	0000000	00000
1/8	5/16"	1/4	Acetal Plastic	White	100 psi @ 72° F	0000000	0000
1/4	7/16"	1/4	Acetal Plastic	White	100 psi @ 72° F	0000000	0000
1/4	7/16"	3/8	Acetal Plastic	White	100 psi @ 72° F	0000000	0000
3/8	3/4"	3/4	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
BSPT Threads
1/8	5/16"	1/8	Acetal Plastic	White	100 psi @ 72° F	00000000	0000
1/4	7/16"	1/4	Acetal Plastic	White	100 psi @ 72° F	00000000	0000
1/4	7/16"	3/8	Acetal Plastic	White	100 psi @ 72° F	00000000	0000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
With Shut-Off
NPT Threads
1/8	5/16"	1/8	Acetal Plastic	White	100 psi @ 72° F	0000000	00000
1/8	5/16"	1/4	Acetal Plastic	White	100 psi @ 72° F	0000000	00000
1/4	7/16"	1/4	Acetal Plastic	White	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8	Acetal Plastic	White	100 psi @ 72° F	0000000	00000
3/8	3/4"	3/4	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
BSPT Threads
1/8	5/16"	1/8	Acetal Plastic	White	100 psi @ 72° F	00000000	00000
1/4	7/16"	1/4	Acetal Plastic	White	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8	Acetal Plastic	White	100 psi @ 72° F	00000000	00000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000

Plugs, Female Threaded Pipe

Temperature Range: -40° to 180° F

						Open Flow		With Shut-Off
Coupling Size	Plug OD	Thread Size	Material	Color	Max. Pressure		Each		Each
UN/UNF (SAE Straight) Threads
1/8	5/16"	10-32	Acetal Plastic	White	100 psi @ 72° F	00000000	000000	00000000	000000

Sockets, Barbed Tube

Temperature Range: -40° to 180° F
Tubing: Use with soft or firm (Durometer 70A-85A) polyurethane rubber

Barbed plugs and sockets insert into tubing. Those with collar do not require a clamp and limit the size of the tubing to a maximum of 1/8” OD.

Open Flow
Coupling Size	For Plug OD	For Tube ID	Barbed Connection Type	Material	Color	Max. Pressure	Socket Locking Type		Each
1/8	5/16"	1/16"	Collar	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	000000
1/8	5/16"	1/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	0000
1/8	5/16"	3/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	0000
1/8	5/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	0000
1/4	7/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	0000
1/4	7/16"	5/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
1/4	7/16"	3/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	0000
With Shut-Off
1/8	5/16"	1/16"	Collar	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
1/8	5/16"	1/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
1/8	5/16"	3/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
1/8	5/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
1/4	7/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
1/4	7/16"	5/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
1/4	7/16"	3/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000

Sockets, Barbed Hose

Temperature Range: 32° to 160° F

Barbed plugs and sockets insert into tubing.

Open Flow
Coupling Size	For Hose ID	Material	Color	Max. Pressure	Socket Locking Type		Each
3/8	5/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	Latch	00000000	000000
3/8	3/4"	Polypropylene Plastic	Gray	60 psi @ 72° F	Latch	00000000	00000
With Shut-Off
3/8	5/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	Latch	00000000	00000
3/8	3/4"	Polypropylene Plastic	Gray	60 psi @ 72° F	Latch	00000000	00000

Through-Wall Sockets, Barbed Tube

Temperature Range: -40° to 180° F
Tubing: Use with soft or firm (Durometer 70A-85A) polyurethane rubber

Barbed plugs and sockets insert into tubing. Those with collar do not require a clamp and limit the size of the tubing to a maximum of 1/8” OD.

Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.

Open Flow
Coupling Size	For Plug OD	For Tube ID	Barbed Connection Type	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.	Socket Locking Type		Each
1/8	5/16"	1/16"	Collar	Acetal Plastic	White	100 psi @ 72° F	1/2"	0.4"	Latch	0000000	000000
1/8	5/16"	1/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	0.4"	Latch	0000000	00000
1/8	5/16"	3/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	0.4"	Latch	00000000	00000
1/8	5/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	0.4"	Latch	0000000	00000
1/4	7/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	11/16"	1/2"	Latch	0000000	00000
1/4	7/16"	3/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	11/16"	1/2"	Latch	0000000	00000
With Shut-Off
1/8	5/16"	1/16"	Collar	Acetal Plastic	White	100 psi @ 72° F	1/2"	0.4"	Latch	0000000	00000
1/8	5/16"	1/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	0.4"	Latch	0000000	00000
1/8	5/16"	3/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	0.4"	Latch	00000000	00000
1/8	5/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	1/2"	0.4"	Latch	0000000	00000
1/4	7/16"	1/4"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	11/16"	1/2"	Latch	0000000	00000
1/4	7/16"	5/16"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	11/16"	1/2"	Latch	00000000	00000
1/4	7/16"	3/8"	Clamp On	Acetal Plastic	White	100 psi @ 72° F	11/16"	1/2"	Latch	0000000	00000

Sockets, Compression Tube

Temperature Range: -40° to 180° F
Tubing: Use with nylon plastic or polyethylene plastic, see table for hardness

							For Tube
Coupling Size	For Plug OD	For Tube ID, mm	For Tube OD	Material	Color	Max. Pressure	Hardness Rating	Hardness	Socket Locking Type		Each
Open Flow
1/8	5/16"	__	5/32"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	Latch	00000000	000000
1/8	5/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	Latch	0000000	00000
1/8	5/16"	2	4mm	Acetal Plastic	White	100 psi @ 72° F	__	__	Latch	00000000	00000
1/4	7/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	Latch	00000000	00000
1/4	7/16"	__	3/8"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	Latch	0000000	00000
With Shut-Off
1/8	5/16"	__	5/32"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	Latch	00000000	00000
1/8	5/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	Latch	0000000	00000
1/8	5/16"	2	4mm	Acetal Plastic	White	100 psi @ 72° F	__	__	Latch	00000000	00000
1/4	7/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	Latch	00000000	00000
1/4	7/16"	__	3/8"	Acetal Plastic	White	100 psi @ 72° F	Firm, Hard	Durometer 85A-60D	Latch	0000000	00000

Through-Wall Sockets, Compression Tube

Temperature Range: -40° to 180° F
Tubing: Use with firm or hard (Durometer 85A-60D) nylon plastic or polyethylene plastic

Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.

Open Flow
Coupling Size	For Plug OD	For Tube ID, mm	For Tube OD	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.	Socket Locking Type		Each
1/8	5/16"	__	5/32"	Acetal Plastic	White	100 psi @ 72° F	1/2"	1/2"	Latch	00000000	000000
1/8	5/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	1/2"	1/2"	Latch	0000000	00000
1/8	5/16"	2	4mm	Acetal Plastic	White	100 psi @ 72° F	1/2"	1/2"	Latch	00000000	00000
1/4	7/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	11/16"	1/2"	Latch	00000000	00000
1/4	7/16"	__	3/8"	Acetal Plastic	White	100 psi @ 72° F	11/16"	1/2"	Latch	0000000	00000
With Shut-Off
1/8	5/16"	__	5/32"	Acetal Plastic	White	100 psi @ 72° F	1/2"	1/2"	Latch	00000000	00000
1/8	5/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	1/2"	1/2"	Latch	0000000	00000
1/8	5/16"	2	4mm	Acetal Plastic	White	100 psi @ 72° F	1/2"	1/2"	Latch	00000000	00000
1/4	7/16"	__	1/4"	Acetal Plastic	White	100 psi @ 72° F	11/16"	1/2"	Latch	00000000	00000
1/4	7/16"	__	3/8"	Acetal Plastic	White	100 psi @ 72° F	11/16"	1/2"	Latch	0000000	00000

Sockets, Push-to-Connect Tube

Temperature Range: -40° to 180° F
Tubing: Use with firm or hard (Durometer 95A-60D) nylon plastic, polyethylene plastic or polyurethane rubber

						Open Flow		With Shut-Off
Coupling Size	For Tube OD	Material	Color	Max. Pressure	Socket Locking Type		Each		Each
1/4	1/4"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	000000	00000000	000000
1/4	3/8"	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000	00000000	00000

Sockets, Male Threaded Pipe

Temperature Range: -40° to 180° F; Polypropylene Plastic Fittings are 32° to 160° F

Open Flow
Coupling Size	For Plug OD	Pipe Size	Material	Color	Max. Pressure	Socket Locking Type		Each
NPT Threads
3/32	1/4"	1/8	Acetal Plastic	White	100 psi @ 72° F	Twist	00000000	00000
1/8	5/16"	1/8	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
1/8	5/16"	1/4	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
1/4	7/16"	1/4	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
1/4	7/16"	3/8	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
3/8	__	3/4	Polypropylene Plastic	Gray	60 psi @ 72° F	Latch	00000000	00000
BSPT Threads
1/8	5/16"	1/8	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
1/4	__	1/4	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
1/4	__	3/8	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
3/8	__	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	Latch	00000000	00000
With Shut-Off
NPT Threads
3/32	1/4"	1/8	Acetal Plastic	White	100 psi @ 72° F	Twist	00000000	00000
1/8	5/16"	1/8	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
1/8	5/16"	1/4	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
1/4	7/16"	1/4	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
1/4	7/16"	3/8	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	00000
3/8	__	3/4	Polypropylene Plastic	Gray	60 psi @ 72° F	Latch	00000000	00000
BSPT Threads
1/8	5/16"	1/8	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
1/4	__	1/4	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
1/4	__	3/8	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000
3/8	__	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	Latch	00000000	00000

Sockets, Female Threaded Pipe

Temperature Range: -40° to 180° F

Open Flow
Coupling Size	Thread Size	Material	Color	Max. Pressure	Socket Locking Type		Each
UN/UNF (SAE Straight) Threads
1/8	10-32	Acetal Plastic	White	100 psi @ 72° F	Latch	0000000	000000
With Shut-Off
UN/UNF (SAE Straight) Threads
1/8	10-32	Acetal Plastic	White	100 psi @ 72° F	Latch	00000000	00000

Quick-Disconnect Tube Couplings for Food and Beverage

Temperature Range:
Acetal Plastic: -40° to 180° F
Polypropylene Plastic: 32° to 160° F
Tubing:
Barbed Fittings: Use with soft or firm (Durometer 65A-80A) polyurethane rubber
Compression Fittings: Use with hard or firm (Durometer 80A-60D) nylon or polyethylene plastic
Specifications Met: NSF/ANSI 169

Couplings consist of a plug and a socket (sold separately) that join with a latch, so you can frequently connect and disconnect your line. To connect, insert the plug into the socket; to disconnect, press the latch on the socket and remove the plug. They’re made of FDA-approved materials, including moisture-resistant plastic that won’t absorb liquid and lose strength, even in high-humidity food and beverage applications.

Plugs and sockets with shut-off have a valve to stop the flow when the coupling is separated, so fluid won’t spill from your line.

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

For technical drawings and 3-D models, click on a part number.

Straight Plugs, Barbed Tube

Barbed plugs insert into tubing and secure with a clamp.

Open Flow
Coupling Size	Plug OD	For Tube ID	Material	Color	Clarity	Max. Pressure		Each
1/4	7/16"	1/4"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	0000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
With Shut-Off
1/4	7/16"	1/4"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000

Straight Plugs, Compression Tube

Compression plugs have a sleeve (ferrule) that compresses the tubing and forms a seal when you tighten the nut.

							With Shut-Off
Coupling Size	Plug OD	For Tube OD	Material	Color	Clarity	Max. Pressure		Each
1/4	7/16"	1/4"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	000000

Straight Plugs, Male Threaded Pipe

Open Flow
Coupling Size	Plug OD	Pipe Size	Material	Color	Clarity	Max. Pressure		Each
NPT Threads
1/4	7/16"	1/4	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	0000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
With Shut-Off
NPT Threads
1/4	7/16"	1/4	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000

90° Elbow Plugs, Barbed Tube

Barbed plugs insert into tubing and secure with a clamp.

Open Flow
Coupling Size	Plug OD	For Tube ID	Material	Color	Clarity	Max. Pressure		Each
1/4	7/16"	1/4"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	0000
With Shut-Off
1/4	7/16"	1/4"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000

Straight Sockets, Barbed Tube

Barbed sockets insert into tubing and secure with a clamp.

Open Flow
Coupling Size	For Plug OD	For Tube ID	Material	Color	Clarity	Max. Pressure		Each
1/4	7/16"	1/4"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	0000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
With Shut-Off
1/4	7/16"	1/4"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000

Through-Wall Straight Sockets, Barbed Tube

Barbed sockets insert into tubing and secure with a clamp.

Through-wall sockets are also known as bulkhead sockets and panel-mount sockets; they mount through your wall or panel to create an inlet or outlet.

Open Flow
Coupling Size	For Plug OD	For Tube ID	Material	Color	Clarity	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	1 3/16"	1/4"	0000000	000000
With Shut-Off
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	1 3/16"	1/4"	0000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	1 3/16"	1/4"	0000000	00000

Straight Sockets, Compression Tube

Compression sockets have a sleeve (ferrule) that compresses the tubing and forms a seal when you tighten the nut.

							With Shut-Off
Coupling Size	For Plug OD	For Tube OD	Material	Color	Clarity	Max. Pressure		Each
1/4	7/16"	1/4"	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	000000

Straight Sockets, Male Threaded Pipe

Open Flow
Coupling Size	For Plug OD	Pipe Size	Material	Color	Clarity	Max. Pressure		Each
NPT Threads
1/4	7/16"	1/4	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	0000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
With Shut-Off
NPT Threads
1/4	7/16"	1/4	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
1/4	7/16"	3/8	Acetal Plastic	White	Semi-Clear	100 psi @ 72° F	0000000	00000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000

Quick-Disconnect Couplings for Plastic and Rubber Tubing—Chemicals

For Use With: Ammonia, Ethanol, Phosphoric Acid (70%), Sodium Carbonate
Temperature Range: 32° to 160° F

Couplings consist of a plug and a socket (sold separately) that join with a latch, so you can frequently connect and disconnect your line. To connect, insert the plug into the socket; to disconnect, press the latch on the socket and remove the plug. Plugs and sockets are polypropylene, which has excellent chemical, impact, and abrasion resistance.

Plugs and sockets with shut-off have a valve to stop the flow when the coupling is separated so fluid won’t spill from your line.

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

For technical drawings and 3-D models, click on a part number.

Straight Plugs, Barbed Tube

Barbed plugs insert into tubing and secure with a clamp.

						Open Flow		With Shut-Off
Coupling Size	Plug OD	For Tube ID	Material	Color	Max. Pressure		Each		Each
1/8	5/16"	1/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	000000
1/8	5/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	0000	00000000	00000
1/4	7/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	0000	00000000	00000
1/4	7/16"	3/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	0000	00000000	00000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	00000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	0000	00000000	00000

Straight Plugs, Male Threaded Pipe

Open Flow
Coupling Size	Plug OD	Pipe Size	Material	Color	Max. Pressure		Each
NPT Threads
1/8	5/16"	1/8	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
1/4	7/16"	1/4	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
With Shut-Off
NPT Threads
1/8	5/16"	1/8	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
1/4	7/16"	1/4	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000

90° Elbow Plugs, Barbed Tube

Barbed plugs insert into tubing and secure with a clamp.

						Open Flow		With Shut-Off
Coupling Size	Plug OD	For Tube ID	Material	Color	Max. Pressure		Each		Each
1/8	5/16"	1/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	000000	00000000	000000
1/8	5/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	00000
1/4	7/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	00000
1/4	7/16"	3/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	00000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	00000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	00000000	00000

Straight Sockets, Barbed Tube

Barbed sockets insert into tubing and secure with a clamp.

						Open Flow		With Shut-Off
Coupling Size	For Plug OD	For Tube ID	Material	Color	Max. Pressure		Each		Each
1/8	5/16"	1/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	000000	00000000	000000
1/8	5/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	00000
1/4	7/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	00000
1/4	7/16"	3/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	00000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	00000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	00000000	00000

Through-Wall Straight Sockets, Barbed Tube

Barbed sockets insert into tubing and secure with a clamp.

Through-wall sockets are also known as bulkhead sockets and panel-mount sockets; they mount through your wall or panel to create an inlet or outlet.

Open Flow
Coupling Size	For Plug OD	For Tube ID	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
1/8	5/16"	1/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	1/2"	1/2"	00000000	000000
1/4	7/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	11/16"	1/2"	00000000	00000
1/4	7/16"	3/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	11/16"	1/2"	00000000	00000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	1 3/16"	1/4"	00000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	60 psi @ 72° F	1 3/16"	1/4"	00000000	00000
With Shut-Off
1/8	5/16"	1/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	1/2"	1/2"	00000000	00000
1/8	5/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	1/2"	1/2"	00000000	00000
1/4	7/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	11/16"	1/2"	00000000	00000
1/4	7/16"	3/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	11/16"	1/2"	00000000	00000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	1 3/16"	1/4"	00000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	60 psi @ 72° F	1 3/16"	1/4"	00000000	00000

Straight Sockets, Male Threaded Pipe

Open Flow
Coupling Size	For Plug OD	Pipe Size	Material	Color	Max. Pressure		Each
NPT Threads
1/8	5/16"	1/8	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	000000
1/4	7/16"	1/4	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
With Shut-Off
NPT Threads
1/8	5/16"	1/8	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
1/8	5/16"	1/4	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
1/4	7/16"	1/4	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
1/4	7/16"	3/8	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000

Email Us

How to Identify and Measure Fittings

Plastic Quick-Disconnect Tube Couplings for Air and Water

Quick-Disconnect Tube Couplings for Food and Beverage

Quick-Disconnect Couplings for Plastic and Rubber Tubing—Chemicals