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.
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Push-to-Connect Tube Fittings with Shut-Off for Air
Male Threads
with Gasket
- Temperature Range: 32° to 140° F
- Tubing: Fittings with Blue Release Ring: Use with firm or hard (Durometer 95A-95D) nylon plastic or polyurethane rubber
Fittings with Black Release Ring: Use with firm (Durometer 95A-45D) polyurethane rubber - Specifications Met: ISO 14743, except fittings with blue release ring
A built-in shut-off valve stops airflow when the fittings are disconnected from tubing. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. Fittings have good corrosion resistance.
Identification rings (sold separately) snap over the release ring so you can color-code your lines.
Clips (sold separately) align and organize your tubing and fittings.
Fittings with PTFE thread sealant offer extra protection against leaks.
Metric and BSPP male threads have a gasket to protect against leaks.
For technical drawings and 3-D models, click on a part number.
Male Threads
with Gasket
Thread | Release Ring | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | Pipe Size  | Size | Pitch, mm | Material | Gasket Material | Material | Color | Max. Pressure | Features | Each | |
Metric Threads | |||||||||||
| 6mm | __ | M5 | 0.8 | Nickel-Plated Brass | Buna-N Rubber | Plastic | Blue | 140 psi @ 72° F | __ | 0000000 | 00000 |
BSPT Threads | |||||||||||
| 6mm | 1/8 | __ | __ | Nickel-Plated Brass | __ | Plastic | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 6mm | 1/4 | __ | __ | Nickel-Plated Brass | __ | Plastic | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 8mm | 1/8 | __ | __ | Nickel-Plated Brass | __ | Plastic | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 8mm | 1/4 | __ | __ | Nickel-Plated Brass | __ | Plastic | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 8mm | 3/8 | __ | __ | Nickel-Plated Brass | __ | Plastic | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 10mm | 1/4 | __ | __ | Nickel-Plated Brass | __ | Plastic | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 10mm | 3/8 | __ | __ | Nickel-Plated Brass | __ | Plastic | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
Through-wall fittings are also known as bulkhead couplings and panel-mount couplings; they mount through your wall or panel to create an inlet or outlet.
Release Ring | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Tube OD, mm | Pipe Size | Material | Material | Color | Max. Pressure | For Hole Dia., mm | For Max. Wall Thick., mm | Each | |
BSPT Threads | |||||||||
| 6 | 1/4 | Nickel-Plated Brass | Plastic | Blue | 140 psi @ 72° F | 15 | 11 | 0000000 | 00000 |
| 8 | 3/8 | Nickel-Plated Brass | Plastic | Blue | 140 psi @ 72° F | 17 | 11 | 0000000 | 0000 |
| 10 | 3/8 | Nickel-Plated Brass | Plastic | Blue | 140 psi @ 72° F | 21 | 11 | 0000000 | 00000 |
Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.
Through-wall fittings are also known as bulkhead couplings and panel-mount couplings; they mount through your wall or panel to create an inlet or outlet.
Male Threads
with Gasket
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
Thread | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Tube OD, mm | Pipe Size | Size | Pitch, mm | Tube Connection Material | Pipe Connection Material | Gasket Material | Color | Release Ring Color | Max. Pressure | Features | Each | |
Metric Threads | ||||||||||||
| 6 | __ | M5 | 0.8 | Polybutylene Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Blue | 140 psi @ 72° F | __ | 0000000 | 00000 |
BSPT Threads | ||||||||||||
| 6 | 1/8 | __ | __ | Polybutylene Plastic | Nickel-Plated Brass | __ | Black | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 6 | 1/4 | __ | __ | Polybutylene Plastic | Nickel-Plated Brass | __ | Black | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 8 | 1/8 | __ | __ | Polybutylene Plastic | Nickel-Plated Brass | __ | Black | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 8 | 1/4 | __ | __ | Polybutylene Plastic | Nickel-Plated Brass | __ | Black | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 8 | 3/8 | __ | __ | Polybutylene Plastic | Nickel-Plated Brass | __ | Black | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 10 | 1/4 | __ | __ | Polybutylene Plastic | Nickel-Plated Brass | __ | Black | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| 10 | 3/8 | __ | __ | Polybutylene Plastic | Nickel-Plated Brass | __ | Black | Blue | 140 psi @ 72° F | PTFE Thread Sealant | 0000000 | 0000 |
| For Tube OD | For Tube OD of Tube Fitting | Material | Number of Clips | Each | |
| 3/8", 10mm | 6mm, 1/4" | Nylon Plastic | 6 | 00000000 | 00000 |
Moisture-Resistant Push-to-Connect Tube Fittings for Air and Water
- For Use With: Air, Lubricated Air, Water,
except Manifolds with Swivel: Air, Water - Temperature Range: 32° to 100° F
- Tubing: Use with firm (Durometer 90A-95A) nylon plastic or polyurethane rubber
These fittings won’t absorb moisture, so they’re good for water and high-humidity air applications. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. They have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| Number of Inlets | For Tube OD | Number of Outlets | For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Mount Type | Mounting Fasteners Included | Each | |
| 2 | 10mm | 6 | 6mm | Polybutylene Plastic | Black | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 000000 |
| 2 | 10mm | 10 | 6mm | Polybutylene Plastic | Black | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 2 | 12mm | 6 | 8mm | Polybutylene Plastic | Black | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 2 | 12mm | 10 | 8mm | Polybutylene Plastic | Black | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |