How to Identify and Measure Fittings
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Brass Low-Pressure Barbed Tube Fittings for Air and Water
A brass body provides protection against corrosive environments. Fittings have barbs that grip onto tubing.
Fittings with a single barb provide a smooth clamping surface for extra-tight connections that minimize leaks.
UN/UNF (SAE Straight) male threads with gasket provide extra protection against leaks. Also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.
(SAE Straight) Male
Threads with Gasket
- Temperature Range: NPT, UN/UNF (SAE Straight) Threads: 32° to 180° F
NPTF Threads: -65° to 75° F
BSPT Threads: -40° to 160° F - Tubing: NPT, UN/UNF (SAE Straight) Threads: Use with firm (Durometer 85A) polyurethane rubber
NPTF Threads: Use with firm (Durometer 95A) polyurethane rubber
BSPT Threads: Use with firm (Durometer 85A) nylon plastic
| For Tube ID | Pipe Size  | Thread Size | Number of Barbs | Material | Gasket Material | Max. Pressure | Lg. | Pkg. Qty. | Pkg. | |
NPT Threads | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/8" | 1/16 | __ | Single | Brass | __ | 150 psi @ 72° F | 11/16" | 5 | 0000000 | 000000 |
| 1/8" | 1/8 | __ | Multiple | Brass | __ | 150 psi @ 72° F | 1" | 5 | 0000000 | 00000 |
UN/UNF (SAE Straight) Threads | ||||||||||
| 1/16" | __ | 3-56 | Single | Brass | __ | 150 psi @ 72° F | 1/4" | 10 | 0000000 | 0000 |
| 1/16" | __ | 10-32 | Multiple | Brass | Buna-N Rubber | 150 psi @ 72° F | 9/16" | 10 | 0000000 | 00000 |
| 1/8" | __ | 10-32 | Multiple | Brass | Buna-N Rubber | 150 psi @ 72° F | 5/8" | 10 | 0000000 | 00000 |
| 1/8" | __ | 10-32 | Multiple | Brass | Buna-N Rubber | 150 psi @ 72° F | 13/16" | 10 | 0000000 | 00000 |
(SAE Straight) Male
Threads with Gasket
- Temperature Range: 32° to 180° F
- Tubing: Use with firm (Durometer 85A) polyurethane rubber
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
| ID | OD | Gasket Material | Max. Pressure | Gasket Color | Pkg. Qty. | Pkg. | |
| 5/32" | 15/64" | Buna-N Rubber | 150 psi @ 72° F | Black | 25 | 0000000 | 00000 |
Brass High-Pressure Barbed Tube Fittings for Air and Water
- Temperature Range: -40° to 250° F
- Tubing: Use with hard (Durometer 65A-60D) EVA plastic, polyurethane rubber or PTFE plastic
These fittings can handle higher pressures than other brass barbed tube fittings for air and water. The barb grips onto tubing, providing a secure hold with no clamp required. Fittings are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| For Tube ID | Pipe Size | Material | Barb Material | Max. Pressure | Each | |
NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 1/32" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 000000 |
| 1/32" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 0.04" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 0.04" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 0.05" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 0.05" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 1/16" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 1/16" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 3/32" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 3/32" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 1/8" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 1/8" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| For Tube ID | Pipe Size | Material | Barb Material | Max. Pressure | Each | |
NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 1/32" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 000000 |
| 1/32" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 0.04" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 0.04" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 0.05" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 0.05" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 1/16" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 1/16" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 3/32" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 3/32" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 1/8" | 1/8 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
| 1/8" | 1/4 | Brass | 321 Stainless Steel | 250 psi @ 72° F | 00000000 | 00000 |
Low-Profile High-Pressure Quick-Disconnect Tube Couplings for Air
- Temperature Range: -30° to 250° F
- Tubing: Use with firm or soft (Durometer 35A-90A) Buna-N rubber, EVA plastic, gum rubber, latex rubber, neoprene rubber, polyurethane rubber, PVC plastic or silicone rubber, except for fittings with pipe end
With no latch, these couplings have a compact design to fit in small spaces. They connect with a push and disconnect with a pull, so you can easily access your line. Couplings consist of a plug and a socket (sold separately). They have a universal connection, so the plugs will connect to any of the sockets regardless of the pipe or tube size. They are nickel-plated brass for very good corrosion resistance.
Note: For a complete coupling, order a plug and a socket.
For technical drawings and 3-D models, click on a part number.
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 ID | Material | Max. Pressure | For Hole Dia. Range | For Max. Wall Thick. | Each | |
| 3/32" | Nickel-Plated Brass | 700 psi @ 72° F | 1/4"-5/16" | 5/32" | 0000000 | 00000 |
| 1/8" | Nickel-Plated Brass | 700 psi @ 72° F | 5/16"-3/8" | 7/32" | 0000000 | 0000 |
| 5/32" | Nickel-Plated Brass | 700 psi @ 72° F | 5/16"-3/8" | 7/32" | 0000000 | 0000 |
| 3/16" | Nickel-Plated Brass | 700 psi @ 72° F | 1/4"-5/16" | 5/32" | 0000000 | 0000 |
Sockets with shut-off have a valve to stop the flow when the coupling is separated, so air won’t leak from your line.
Barbed plugs and sockets insert into tubing and secure with a clamp.
Sockets with shut-off have a valve to stop the flow when the coupling is separated, so air won’t leak from your line.
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 | With Shut-Off | |||||||
|---|---|---|---|---|---|---|---|---|
| For Tube ID | Material | Max. Pressure | For Hole Dia. Range | For Max. Wall Thick. | Each | Each | ||
| 3/32" | Nickel-Plated Brass | 700 psi @ 72° F | 1/4"-5/16" | 5/32" | 0000000 | 000000 | 0000000 | 000000 |
| 1/8" | Nickel-Plated Brass | 700 psi @ 72° F | 5/16"-3/8" | 7/32" | 0000000 | 00000 | 0000000 | 00000 |
| 5/32" | Nickel-Plated Brass | 700 psi @ 72° F | 5/16"-3/8" | 7/32" | 0000000 | 00000 | 0000000 | 00000 |
| 3/16" | Nickel-Plated Brass | 700 psi @ 72° F | 1/4"-5/16" | 5/32" | 0000000 | 00000 | 0000000 | 00000 |