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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Brass Push-to-Connect Tube Fittings for Air
- Temperature Range: 0° to 200° F, except nylon plastic fittings are 0° to 150° F
- Tubing: Use with hard nylon plastic or polyethylene plastic
These fittings offer good protection against corrosive environments. 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 with acrylic thread sealant offer extra protection against leaks.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
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 | Pipe Size  | Material | Material | Color | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Features | Each | |
NPTF Threads | ||||||||||
| 5/32" | 1/4 | Nickel-Plated Brass | Plastic | Black | 290 psi @ 72° F | 1/2" | 3/16" | Acrylic Thread Sealant | 000000000 | 000000 |
| 1/4" | 1/4 | Nickel-Plated Brass | Plastic | Black | 290 psi @ 72° F | 9/16" | 15/64" | Acrylic Thread Sealant | 000000000 | 00000 |
| 3/8" | 3/8 | Nickel-Plated Brass | Plastic | Black | 290 psi @ 72° F | 7/8" | 7/32" | Acrylic Thread Sealant | 000000000 | 00000 |
| 1/2" | 3/8 | Nickel-Plated Brass | Plastic | Black | 290 psi @ 72° F | 7/8" | 11/32" | Acrylic Thread Sealant | 000000000 | 00000 |
37° Flared Fittings for Steel Tubing
- Tubing: Use with seamless steel
- Specifications Met: SAE J514
Also known as JIC (Joint Industrial Council) fittings, these provide a tight metal-to-metal seal on tubing that is flared to 37°. They require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately. Fittings are zinc-plated steel for fair corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Temperature Range: -60° to 400° F
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.
- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Temperature Range: -60° to 400° F
Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on steel tubing that is flared to 37°. Sleeves are zinc-plated steel for fair corrosion resistance. They are also known as ferrules.
