Connection Style Connection Style | Show |
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Barbed |
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Threaded |
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Barbed |
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Push to Connect |
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Flared |
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Quick Clamp |
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Claw Clamp |
Connection Type Connection Type | Show |
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![]() | Tube |
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Thread Type Thread Type |
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Shape Shape |
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![]() | Straight |
Barbed Connection Type Barbed Connection Type |
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![]() | Push On |
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For Use With For Use With |
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Number of Barbs Number of Barbs |
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![]() | Single |
For Tube Material For Tube Material |
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Barb Style Barb Style |
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![]() | Standard |
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Maximum Temperature Maximum Temperature |
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Maximum Pressure Maximum Pressure |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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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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Aluminum Low-Pressure Barbed Tube Fittings for Air and Water
- For Use With: Air, Lubricated Air, Water
- Temperature Range: -40° to 230° F
- Tubing: Use with hard (Durometer 75A-60D) EVA plastic, polyethylene plastic, polyurethane rubber or PVDF plastic
Made of aluminum, these fittings are lighter in weight than other metal barbed tube fittings and have good corrosion resistance. The barb grips onto tubing, providing a secure hold with no clamp required.
Metric, BSPP, and UN/UNF (SAE Straight) male threads have a gasket or O-ring for a tight seal. UN/UNF (SAE Straight) threads are 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
For Tube ID | Pipe Size | Thread Size | Thread Pitch, mm | Material | Gasket Material | O-Ring Material | Max. Pressure | Each | |
NPT Threads | |||||||||
---|---|---|---|---|---|---|---|---|---|
1/16" | 1/16 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 00000000 | 00000 |
1/16" | 1/4 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/8" | 1/8 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/8" | 1/4 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 00000000 | 0000 |
0.17" | 1/4 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | 1/8 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | 1/4 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 00000000 | 0000 |
3/8" | 1/4 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/2" | 1/4 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 00000000 | 0000 |
2mm | 1/8 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 0000 |
4mm | 1/8 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 0000 |
4mm | 1/4 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 0000 |
4mm | 3/8 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 00000 |
6mm | 1/16 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 0000 |
6mm | 1/8 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 0000 |
6mm | 1/4 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 0000 |
8mm | 1/16 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 0000 |
8mm | 1/8 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 0000 |
8mm | 1/4 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 00000 |
8mm | 3/8 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 00000 |
8mm | 1/2 | __ | __ | Aluminum | __ | __ | 125 psi @ 72° F | 0000000 | 00000 |
Metric Threads | |||||||||
1/16" | __ | M5 | 0.8 | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/16" | __ | M6 | 1 | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/8" | __ | M5 | 0.8 | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/8" | __ | M6 | 1 | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/8" | __ | M8 | 1 | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
0.17" | __ | M8 | 1 | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | __ | M5 | 0.8 | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | __ | M6 | 1 | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | __ | M8 | 1 | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1mm | __ | M3 | 0.5 | Aluminum | Fiber | __ | 125 psi @ 72° F | 0000000 | 0000 |
1mm | __ | M5 | 0.8 | Aluminum | Fiber | __ | 125 psi @ 72° F | 0000000 | 0000 |
2mm | __ | M3 | 0.5 | Aluminum | Fiber | __ | 125 psi @ 72° F | 0000000 | 0000 |
2mm | __ | M5 | 0.8 | Aluminum | Fiber | __ | 125 psi @ 72° F | 0000000 | 0000 |
2mm | __ | M6 | 0.75 | Aluminum | __ | Buna-N Rubber | 125 psi @ 72° F | 0000000 | 00000 |
4mm | __ | M3 | 0.5 | Aluminum | Fiber | __ | 125 psi @ 72° F | 0000000 | 0000 |
4mm | __ | M5 | 0.8 | Aluminum | Fiber | __ | 125 psi @ 72° F | 0000000 | 0000 |
4mm | __ | M6 | 0.75 | Aluminum | __ | Buna-N Rubber | 125 psi @ 72° F | 0000000 | 00000 |
4mm | __ | M8 | 1 | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
6mm | __ | M5 | 0.8 | Aluminum | Fiber | __ | 125 psi @ 72° F | 0000000 | 0000 |
6mm | __ | M6 | 0.75 | Aluminum | __ | Buna-N Rubber | 125 psi @ 72° F | 0000000 | 00000 |
BSPP Threads | |||||||||
4mm | 1/8 | __ | __ | Aluminum | __ | Buna-N Rubber | 125 psi @ 72° F | 00000000 | 00000 |
4mm | 1/4 | __ | __ | Aluminum | __ | Buna-N Rubber | 125 psi @ 72° F | 00000000 | 00000 |
6mm | 1/8 | __ | __ | Aluminum | __ | Buna-N Rubber | 125 psi @ 72° F | 00000000 | 00000 |
6mm | 1/4 | __ | __ | Aluminum | __ | Buna-N Rubber | 125 psi @ 72° F | 00000000 | 00000 |
8mm | 1/8 | __ | __ | Aluminum | __ | Buna-N Rubber | 125 psi @ 72° F | 00000000 | 00000 |
8mm | 1/4 | __ | __ | Aluminum | __ | Buna-N Rubber | 125 psi @ 72° F | 00000000 | 00000 |
8mm | 1/2 | __ | __ | Aluminum | __ | Buna-N Rubber | 125 psi @ 72° F | 00000000 | 00000 |
UN/UNF (SAE Straight) Threads | |||||||||
1/16" | __ | 10-32 | __ | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/16" | __ | 1/4"-28 | __ | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/8" | __ | 10-32 | __ | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/8" | __ | 1/4"-28 | __ | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
0.17" | __ | 10-32 | __ | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
0.17" | __ | 1/4"-28 | __ | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | __ | 10-32 | __ | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | __ | 1/4"-28 | __ | Aluminum | Fiber | __ | 125 psi @ 72° F | 00000000 | 0000 |

For Tube ID | Pipe Size | Thread Size | Thread Pitch, mm | Material | Max. Pressure | Each | |
NPT Threads | |||||||
---|---|---|---|---|---|---|---|
1/16" | 1/16 | __ | __ | Aluminum | 125 psi @ 72° F | 00000000 | 000000 |
1/16" | 1/4 | __ | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/8" | 1/8 | __ | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/8" | 1/4 | __ | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
0.17" | 1/4 | __ | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/4" | 1/8 | __ | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/4" | 1/4 | __ | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
3/8" | 1/4 | __ | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/2" | 1/4 | __ | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
2mm | 1/8 | __ | __ | Aluminum | 125 psi @ 72° F | 0000000 | 0000 |
4mm | 1/4 | __ | __ | Aluminum | 125 psi @ 72° F | 0000000 | 00000 |
6mm | 1/4 | __ | __ | Aluminum | 125 psi @ 72° F | 0000000 | 00000 |
8mm | 1/4 | __ | __ | Aluminum | 125 psi @ 72° F | 0000000 | 00000 |
8mm | 3/8 | __ | __ | Aluminum | 125 psi @ 72° F | 0000000 | 00000 |
Metric Threads | |||||||
1/8" | __ | M5 | 0.8 | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/8" | __ | M6 | 1 | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/4" | __ | M5 | 0.8 | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/4" | __ | M6 | 1 | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
4mm | __ | M3 | 0.5 | Aluminum | 125 psi @ 72° F | 0000000 | 0000 |
4mm | __ | M5 | 0.8 | Aluminum | 125 psi @ 72° F | 0000000 | 0000 |
UN/UNF (SAE Straight) Threads | |||||||
1/16" | __ | 10-32 | __ | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
1/16" | __ | 1/4"-28 | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/8" | __ | 10-32 | __ | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
1/8" | __ | 1/4"-28 | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
0.17" | __ | 10-32 | __ | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
0.17" | __ | 1/4"-28 | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/4" | __ | 10-32 | __ | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | __ | 1/4"-28 | __ | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |

For Tube ID | Material | Max. Pressure | Each | |
1/16" | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
1/8" | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
0.17" | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
3/8" | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
1/2" | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
1mm | Aluminum | 125 psi @ 72° F | 0000000 | 0000 |
2mm | Aluminum | 125 psi @ 72° F | 0000000 | 0000 |
4mm | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
6mm | Aluminum | 125 psi @ 72° F | 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.
For Tube ID | Material | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
1/16" | Aluminum | 125 psi @ 72° F | 3/16" | 1/4" | 00000000 | 000000 |
1/8" | Aluminum | 125 psi @ 72° F | 1/4" | 5/16" | 00000000 | 00000 |
0.17" | Aluminum | 125 psi @ 72° F | 5/16" | 13/32" | 00000000 | 00000 |
1/4" | Aluminum | 125 psi @ 72° F | 3/8" | 13/32" | 00000000 | 00000 |
3/8" | Aluminum | 125 psi @ 72° F | 1/2" | 13/32" | 00000000 | 00000 |
1/2" | Aluminum | 125 psi @ 72° F | 3/4" | 53/64" | 00000000 | 00000 |

For Tube ID (A) | For Tube ID (B) | Material | Max. Pressure | Each | |
1/8" | 1/16" | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
0.17" | 1/8" | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | 1/16" | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | 1/8" | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
1/4" | 0.17" | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
3/8" | 1/4" | Aluminum | 125 psi @ 72° F | 00000000 | 0000 |
1/2" | 1/4" | Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
6mm | 2mm | Aluminum | 125 psi @ 72° F | 0000000 | 0000 |
6mm | 4mm | Aluminum | 125 psi @ 72° F | 0000000 | 0000 |
8mm | 4mm | Aluminum | 125 psi @ 72° F | 0000000 | 0000 |
8mm | 6mm | Aluminum | 125 psi @ 72° F | 0000000 | 0000 |
Choose-a-Color Aluminum Low-Pressure Barbed Tube Fittings for Air and Water
- For Use With: Air, Lubricated Air, Water
- Temperature Range: -40° to 230° F
- Tubing: Use with hard (Durometer 75A-60D) EVA plastic, polyethylene plastic, polyurethane rubber or PVDF plastic
Color-code fittings for easy identification. Fittings are aluminum, which is lightweight with good corrosion resistance. The barb grips onto tubing, providing a secure hold with no clamp required.
Metric and UN/UNF (SAE Straight) male threads have a gasket for a tight seal. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.


(SAE Straight) Male
Threads with Gasket
For Tube ID | Pipe Size | Thread Size | Thread Pitch, mm | Material | Gasket Material | Max. Pressure | Choose a Color | Each | |
NPT Threads | |||||||||
---|---|---|---|---|---|---|---|---|---|
1/16" | 1/16 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 00000 | |
1/16" | 1/4 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 0000 | |
1/8" | 1/8 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 0000 | |
1/8" | 1/4 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 0000 | |
0.17" | 1/4 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | 1/8 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | 1/4 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 0000 | |
3/8" | 1/4 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 0000 | |
1/2" | 1/4 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 0000 | |
4mm | 1/8 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 0000 | |
8mm | 1/16 | __ | __ | Anodized Aluminum | __ | 125 psi @ 72° F | 00000000 | 0000 | |
Metric Threads | |||||||||
1/16" | __ | M5 | 0.8 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/16" | __ | M6 | 1 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/16" | __ | M8 | 1 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/8" | __ | M5 | 0.8 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/8" | __ | M6 | 1 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/8" | __ | M8 | 1 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
0.17" | __ | M8 | 1 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | __ | M5 | 0.8 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | __ | M6 | 1 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | __ | M8 | 1 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
2mm | __ | M3 | 0.5 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 00000 | |
4mm | __ | M5 | 0.8 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 00000 | |
4mm | __ | M8 | 1 | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
UN/UNF (SAE Straight) Threads | |||||||||
1/16" | __ | 10-32 | __ | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/16" | __ | 1/4"-28 | __ | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/8" | __ | 10-32 | __ | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/8" | __ | 1/4"-28 | __ | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
0.17" | __ | 10-32 | __ | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
0.17" | __ | 1/4"-28 | __ | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | __ | 10-32 | __ | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | __ | 1/4"-28 | __ | Anodized Aluminum | Fiber | 125 psi @ 72° F | 00000000 | 0000 |

For Tube ID | Pipe Size | Thread Size | Thread Pitch, mm | Material | Max. Pressure | Choose a Color | Each | |
NPT Threads | ||||||||
---|---|---|---|---|---|---|---|---|
1/16" | 1/16 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 000000 | |
1/16" | 1/4 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/8" | 1/8 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/8" | 1/4 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
0.17" | 1/4 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/4" | 1/8 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/4" | 1/4 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
3/8" | 1/4 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/2" | 1/4 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
2mm | 1/8 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
6mm | 1/4 | __ | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
Metric Threads | ||||||||
1/8" | __ | M5 | 0.8 | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/8" | __ | M6 | 1 | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/4" | __ | M5 | 0.8 | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/4" | __ | M6 | 1 | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
UN/UNF (SAE Straight) Threads | ||||||||
1/16" | __ | 10-32 | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
1/16" | __ | 1/4"-28 | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/8" | __ | 10-32 | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
1/8" | __ | 1/4"-28 | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
0.17" | __ | 10-32 | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
0.17" | __ | 1/4"-28 | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/4" | __ | 10-32 | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | __ | 1/4"-28 | __ | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 |

For Tube ID | Material | Max. Pressure | Choose a Color | Each | |
1/16" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
1/8" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
0.17" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
3/8" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
1/2" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
4mm | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 |

For Tube ID (A) | For Tube ID (B) | Material | Max. Pressure | Choose a Color | Each | |
1/8" | 1/16" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 | |
0.17" | 1/8" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | 1/16" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | 1/8" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
1/4" | 0.17" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
3/8" | 1/4" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 0000 | |
1/2" | 1/4" | Anodized Aluminum | 125 psi @ 72° F | 00000000 | 00000 |
Screw-On Nut Barbed Tube Fittings for Air
- Temperature Range: 20° to 140° F
- Tubing: Use with firm or hard (Durometer 95A-60D) polyethylene plastic or polyurethane rubber
You don’t need a clamp to secure these fittings to tubing. They have a nut on the barbed end that tightens to hold the tubing in place.
Aluminum and nylon fittings have better corrosion resistance than brass and are lighter in weight.
Metric and BSPP male threads with gasket provide extra protection against leaks.
For technical drawings and 3-D models, click on a part number.


(SAE Straight) Male
Threads with Gasket
Thread | ||||||||
---|---|---|---|---|---|---|---|---|
For Tube ID, mm | Pipe Size | Size | Pitch, mm | Material | Gasket Material | Max. Pressure | Each | |
Metric Threads | ||||||||
6 | __ | M10 | 1 | Anodized Aluminum | __ | 145 psi @ 72° F | 00000000 | 00000 |
BSPP Threads | ||||||||
4 | 1/4 | __ | __ | Anodized Aluminum | Santoprene Rubber | 145 psi @ 72° F | 00000000 | 0000 |
6 | 1/8 | __ | __ | Anodized Aluminum | Santoprene Rubber | 145 psi @ 72° F | 00000000 | 0000 |
6 | 1/4 | __ | __ | Anodized Aluminum | Santoprene Rubber | 145 psi @ 72° F | 0000000 | 0000 |
8 | 1/8 | __ | __ | Anodized Aluminum | Santoprene Rubber | 145 psi @ 72° F | 00000000 | 0000 |
8 | 1/4 | __ | __ | Anodized Aluminum | Santoprene Rubber | 145 psi @ 72° F | 00000000 | 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.
Quick-Clamp High-Vacuum Fittings for Stainless Steel Tubing

- For Use With:
Fittings with Gasket End: Air, Argon, Helium, Nitrogen
All Other Fittings: Air - Temperature Range: 0° to 300° F
- Tubing: Use with 304/304L or 316/316L stainless steel
- Specifications Met: ISO 2861
Instead of a gasket, these fittings have a special ring that is designed for high-vacuum applications, such as vacuum coating and heat treating, leak testing, and analyzing gases. Also known as KF, QF, and NW fittings, they are the most common type of connection in high-vacuum systems. Connect with a clamp and another quick-clamp fitting for fast, easy access to your line. To use fittings in pressure applications, use a pressure-rated ring (sold separately).
Aluminum fittings have good corrosion resistance and are lighter than stainless steel fittings. Note: To complete a connection, you’ll need two quick-clamp fittings, a ring, and a clamp (all sold separately).
For technical drawings and 3-D models, click on a part number.


Fittings with barbed hose end connect flexible hose or tubing to your system. Secure with a hose clamp (sold separately).
For Tube OD | Flange OD | High-Vacuum Flange Size | High Vacuum Connection Type | For Hose ID | Material | Max. Vacuum | Each | |
3/4" | 1.18" | 16 | ISO-KF | 1/2" | Aluminum | 1 × 10 -7 torr @ 72° F | 00000000 | 000000 |
3/4" | 1.18" | 16 | ISO-KF | 3/4" | Aluminum | 1 × 10 -7 torr @ 72° F | 00000000 | 00000 |
1" | 1.57" | 25 | ISO-KF | 7/8" | Aluminum | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
1 1/2" | 2.16" | 40 | ISO-KF | 1 5/8" | Aluminum | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
2" | 2.95" | 50 | ISO-KF | 1 5/8" | Aluminum | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |


Clamps tighten by hand. Spring-loaded clamps are also known as toggle clamps.
For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Material | Max. Vacuum | Lanyard Length | Each | |
with Wing Nut | ||||||||
---|---|---|---|---|---|---|---|---|
1/2", 3/4" | 1.18" | 10, 16 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | __ | 00000000 | 00000 |
1" | 1.57" | 25 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | __ | 0000000 | 00000 |
1 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | __ | 0000000 | 00000 |
2" | 2.95" | 50 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | __ | 0000000 | 00000 |
Spring Loaded | ||||||||
1/2", 3/4" | 1.18" | 10, 16 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | __ | 0000000 | 00000 |
1" | 1.57" | 25 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | __ | 0000000 | 00000 |
1 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | __ | 0000000 | 00000 |
2" | 2.95" | 50 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | __ | 0000000 | 00000 |
Spring Loaded with Lanyard | ||||||||
3/4" | 1.18" | 16 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | 5 3/4" | 00000000 | 00000 |
1" | 1.57" | 25 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | 5 3/4" | 00000000 | 00000 |
1 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | 5 3/4" | 00000000 | 00000 |
2" | 2.95" | 50 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | 5 3/4" | 00000000 | 00000 |



Use these rings with quick-clamp high-vacuum fittings. They consist of a stainless steel inner ring covered by a fluoroelastomer O-ring.
For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Inner Ring Material | Max. Vacuum | Max. Pressure | Each | |
Rings | ||||||||
---|---|---|---|---|---|---|---|---|
3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | Not Rated | 00000000 | 00000 |
1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | Not Rated | 0000000 | 0000 |
1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | Not Rated | 0000000 | 00000 |
2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | Not Rated | 0000000 | 00000 |
Rings with Stainless Steel Screen | ||||||||
3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | Not Rated | 00000000 | 00000 |
1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | Not Rated | 00000000 | 00000 |
1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | Not Rated | 00000000 | 00000 |
2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | Not Rated | 00000000 | 00000 |
Rings with Aluminum Outer Ring | ||||||||
3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | Not Rated | 00000000 | 00000 |
1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 100 psi @ 72° F | 0000000 | 00000 |
1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 75 psi @ 72° F | 0000000 | 00000 |
2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 50 psi @ 72° F | 0000000 | 00000 |


Hose absorbs moderate vibration
For Tube OD | Flange OD | High-Vacuum Flange Size | High Vacuum Connection Type | Material | Max. Vacuum | Bend Radius | Flexibility | Each | |
3 3/16" Lg. | |||||||||
---|---|---|---|---|---|---|---|---|---|
3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | __ | Rigid | 0000000 | 000000 |
4 3/16" Lg. | |||||||||
1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | __ | Rigid | 0000000 | 00000 |
1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | __ | Rigid | 0000000 | 000000 |
2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | __ | Rigid | 0000000 | 000000 |
12" Lg. | |||||||||
3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 1 5/8" | Flexible | 00000000 | 000000 |
1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 1 3/8" | Flexible | 00000000 | 000000 |
1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 2 1/2" | Flexible | 00000000 | 000000 |
2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 3 1/4" | Flexible | 00000000 | 000000 |
24" Lg. | |||||||||
3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 1 5/8" | Flexible | 00000000 | 000000 |
1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 1 3/8" | Flexible | 00000000 | 000000 |
1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 2 1/2" | Flexible | 00000000 | 000000 |
2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 3 1/4" | Flexible | 00000000 | 000000 |
39" Lg. | |||||||||
3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 1 5/8" | Flexible | 00000000 | 000000 |
1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 1 3/8" | Flexible | 00000000 | 000000 |
1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 2 1/2" | Flexible | 00000000 | 000000 |
2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 3 1/4" | Flexible | 00000000 | 000000 |

Valves are also known as vacuum isolation valves. They connect to a vacuum system so you can install gauges, release gases, and remove air. They operate manually and have a compact body that fits easily into tight spaces.
Actuation | For Tube OD | Flange OD | High-Vacuum Flange Size | Max. Vacuum | Body Material | Overall Ht. | Overall Lg. | Each | |
Manual | 3/4" | 1 3/16" | 16 | 10 -7 torr @ 72° F | 304 Stainless Steel | 4 1/8" | 2 1/4" | 00000000 | 0000000 |
Manual | 1" | 1 9/16" | 25 | 10 -7 torr @ 72° F | 304 Stainless Steel | 5 5/8" | 3" | 00000000 | 000000 |
Manual | 1 1/2" | 2 1/8" | 40 | 10 -7 torr @ 72° F | 304 Stainless Steel | 6 3/8" | 3 7/8" | 00000000 | 000000 |
Manual | 2" | 2 15/16" | 50 | 10 -7 torr @ 72° F | 304 Stainless Steel | 8" | 4 1/2" | 00000000 | 00000000 |