Quick-Disconnect Brass Compression Tube Fittings

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76 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.

Plastic Quick-Disconnect Tube Couplings for Air and Water

Lighter in weight than their metal counterparts, these quick-disconnect couplings are made of acetal plastic. They are moisture resistant, so they won’t absorb water and lose strength, even in high-humidity environments. A complete coupling consists of a plug and socket; choose a set for both, or select a plug and socket separately. Because they're quick disconnect, they're helpful for lines you frequently need to access.

Latch-lock sockets connect and disconnect with just one hand. Join sockets with a push and disconnect sockets by pressing the latch.

Plugs 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.

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
NPT Threads
1/4"	1/8	Acetal Plastic	White	100 psi @ 72° F	Latch	5012K124	000000
1/4"	1/4	Acetal Plastic	White	100 psi @ 72° F	Latch	5012K125	00000
3/8"	3/8	Acetal Plastic	White	100 psi @ 72° F	Latch	5012K126	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	5012K122	000000
3/8"	Acetal Plastic	White	100 psi @ 72° F	Latch	5012K123	00000

Plugs, Compression Tube

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

							For Tube
For Tube OD	For Tube ID	Coupling Size	Plug OD	Material	Color	Max. Pressure	Hardness Rating	Hardness		Each
Open Flow
8mm	6mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	Firm, Hard	Durometer 85A-60D	5012K523	000000
10mm	8mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	Firm, Hard	Durometer 85A-60D	5012K524	00000
With Shut-Off
8mm	6mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	Firm, Hard	Durometer 85A-60D	5012K525	00000
10mm	8mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	Firm, Hard	Durometer 85A-60D	5012K526	00000

90° Elbow Plugs, Compression Tube

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

							Open Flow		With Shut-Off
For Tube OD	For Tube ID	Coupling Size	Plug OD	Material	Color	Max. Pressure		Each		Each
1/4"	11/64"	1/8	5/16"	Acetal Plastic	White	120 psi @ 72° F	5012K527	00000	5012K529	000000
3/8"	1/4"	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	5012K528	0000	5012K531	00000

Sockets, Compression Tube

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

Open Flow
For Tube OD	For Tube ID	Coupling Size	For Plug OD	Material	Color	Max. Pressure	Socket Locking Type		Each
8mm	6mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	Latch	5012K559	000000
10mm	8mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	Latch	5012K561	00000
With Shut-Off
8mm	6mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	Latch	5012K562	00000
10mm	8mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	Latch	5012K563	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
For Tube OD	For Tube ID	Coupling Size	For Plug OD	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.	Socket Locking Type		Each
8mm	6mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	11/16"	1/2"	Latch	5012K564	000000
10mm	8mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	11/16"	1/2"	Latch	5012K565	00000
With Shut-Off
8mm	6mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	11/16"	1/2"	Latch	5012K566	00000
10mm	8mm	1/4	7/16"	Acetal Plastic	White	120 psi @ 72° F	11/16"	1/2"	Latch	5012K567	00000

Brass Quick-Disconnect Tube Couplings for Air

Temperature Range: 0° to 180° F
Tubing: Use with hard polyethylene plastic or polypropylene plastic

An all-brass body gives these quick-disconnect couplings better durability than plastic quick-disconnect couplings. They’re nickel plated for very good corrosion resistance. Couplings consist of a plug and a socket that join with a latch, so you can easily connect and disconnect your line. To connect, insert the plug into the socket; to disconnect, press the latch and remove the plug.

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

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

Plugs, Compression Tube

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

					Open Flow		With Shut-Off
Coupling Size	Plug OD	For Tube OD	Material	Max. Pressure		Each		Each
1/4	1/4"	1/4"	Nickel Plated Brass	150 psi @ 72° F	5327K92	000000	5327K94	000000
3/8	3/8"	3/8"	Nickel Plated Brass	150 psi @ 72° F	5327K93	00000	5327K98	00000

Through-Wall Sockets, Compression Tube

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

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.

							With Shut-Off
Coupling Size	For Plug OD	For Tube OD	Material	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
1/4	1/4"	1/4"	Nickel Plated Brass	150 psi @ 72° F	1/2"	27/32"	5327K89	000000
3/8	3/8"	3/8"	Nickel Plated Brass	150 psi @ 72° F	11/16"	15/16"	5327K91	00000

Plug and Socket Sets, Compression Tube × Male Threaded Pipe

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

				Open Flow		With Shut-Off
For Tube OD	Pipe Size	Material	Max. Pressure		Each		Each
NPT Threads
1/4"	1/4	Nickel Plated Brass	150 psi @ 72° F	5327K156	000000	5327K159	0000000
1/4"	1/8	Nickel Plated Brass	150 psi @ 72° F	5327K155	00000	5327K158	00000
3/8"	1/4	Nickel Plated Brass	150 psi @ 72° F	5327K157	000000	5327K161	000000

Plug and Through-Wall Socket Sets, Compression Tube

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

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		With Shut-Off
For Tube OD	Material	Maximum Pressure	For Hole Dia.	For Max. Wall Thick.		Each		Each
1/4"	Nickel Plated Brass	150 psi @ 72° F	1/2"	27/32"	5327K151	0000000	5327K153	0000000
3/8"	Nickel Plated Brass	150 psi @ 72° F	11/16"	15/16"	5327K152	000000	5327K154	000000

High-Pressure Quick-Disconnect Tube Couplings for Air

Not only are these chrome-plated brass couplings corrosion resistant, they’re also durable enough to handle pressures up to 250 psi and can be used with vacuum. 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 with open flow control give you higher flow rates than those with shut-off flow control. They also minimize pressure drops across the connection. For the best flow rates, pair an open flow plug with an open flow socket. Plugs and sockets with shut-off flow control have a valve that stops air from leaking out when you detach the coupling.

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

Plugs, Compression Tube

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

Compression fittings bite into hard metal or plastic tubing in low-pressure and medium-pressure applications. They’re also known as flareless fittings.

					Open Flow		With Shut-Off
For Tube OD	Coupling Size	Plug OD	Material	Max. Pressure		Each		Each
5/32"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K841	000000	5478K842	000000
1/4"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K317	00000	5478K417	00000
1/4"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K917	00000	5478K147	00000
3/8"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	______	00	5478K843	00000
3/8"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K918	00000	5478K148	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 mount through a panel or wall to create an inlet or outlet. They’re also known as bulkhead or panel-mount plugs and sockets.

Compression fittings bite into hard metal and plastic tubing in low-pressure and medium-pressure applications. They’re also known as flareless fittings.

Open Flow
For Tube OD	Coupling Size	Plug OD	Material	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
1/4"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	1/2"	19/64"	5478K314	000000
1/4"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	11/16"	19/64"	5478K913	00000
3/8"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	11/16"	19/64"	5478K914	00000
With Shut-Off
1/4"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	1/2"	19/64"	5478K414	00000
1/4"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	11/16"	19/64"	5478K143	00000
3/8"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	11/16"	19/64"	5478K144	00000

90° Elbow Plugs, Compression Tube

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

Compression fittings bite into hard metal or plastic tubing in low-pressure and medium-pressure applications. They’re also known as flareless fittings.

					Open Flow		With Shut-Off
For Tube OD	Coupling Size	Plug OD	Material	Max. Pressure		Each		Each
5/32"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K844	000000	5478K848	000000
1/4"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K845	00000	5478K849	00000
1/4"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K846	00000	5478K851	00000
3/8"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K847	00000	5478K852	00000

Sockets, Compression Tube

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

Compression fittings bite into hard metal or plastic tubing in low-pressure and medium-pressure applications. They’re also known as flareless fittings.

					Open Flow		With Shut-Off
For Tube OD	Coupling Size	For Plug OD	Material	Max. Pressure		Each		Each
1/4"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K217	000000	5478K227	000000
1/4"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K517	00000	5478K717	00000
3/8"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	5478K518	00000	5478K718	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 mount through a panel or wall to create an inlet or outlet. They’re also known as bulkhead or panel-mount plugs and sockets.

Compression fittings bite into hard metal or plastic tubing in low-pressure and medium-pressure applications. They’re also known as flareless fittings.

Open Flow
For Tube OD	Coupling Size	For Plug OD	Material	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
5/32"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	1/2"	1/2"	5478K213	000000
1/4"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	1/2"	1/2"	5478K214	00000
1/4"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	11/16"	1/2"	5478K513	00000
3/8"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	11/16"	1/2"	5478K514	00000
With Shut-Off
5/32"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	1/2"	1/2"	5478K223	00000
1/4"	1/8	5/16"	Chrome-Plated Brass	250 psi @ 72° F	1/2"	1/2"	5478K224	00000
1/4"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	11/16"	1/2"	5478K713	00000
3/8"	1/4	7/16"	Chrome-Plated Brass	250 psi @ 72° F	11/16"	1/2"	5478K714	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.

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	5923K61	000000

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	5923K31	000000