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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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How to Measure Threaded Pipe Size
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Low-Pressure Aluminum Threaded Pipe Fittings
In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications. To prevent cracking, do not tighten more than a 1/4-turn past hand tight.
For technical drawings and 3-D models, click on a part number.
Plugs with Hex Drive
- For Use With: Air, Water, Hydraulic Fluid
- Specifications Met: ASME B1.20.1, ASME B16.11, ASTM B221, Fed. Spec. QQ-A-200/8
- Pressure Class: 150
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
Black Anodized 2011 Aluminum | |||||
|---|---|---|---|---|---|
Pipe Size | Drive Size | Plug Construction | Max. Pressure | Each | |
NPT Male | |||||
| 1/16 | 5/32" | Solid | 150 psi @ 72° F | 00000000 | 00000 |
| 1/8 | 3/16" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 1/4 | 1/4" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 3/8 | 5/16" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 1/2 | 3/8" | Solid | 150 psi @ 72° F | 00000000 | 00000 |
| 3/4 | 9/16" | Solid | 150 psi @ 72° F | 00000000 | 00000 |
| 1 | 5/8" | Solid | 150 psi @ 72° F | 00000000 | 00000 |
| 1 1/4 | 3/4" | Solid | 150 psi @ 72° F | 00000000 | 00000 |
BSPT Male | |||||
| 1/8 | 3/16" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 1/4 | 1/4" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 3/8 | 5/16" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 1/2 | 3/8" | Solid | 150 psi @ 72° F | 00000000 | 00000 |
Plugs with External Hex Drive
Metric and UNF Male Threads with Gasket
- For Use With: Air, Water, Hydraulic Fluid
- Specifications Met: ASME B1.20.1, ASME B16.11, ASTM B221, Fed. Spec. QQ-A-200/8
- Pressure Class: 150
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
| Pressure Class | Pipe Size | Thread Size | Thread Pitch, mm | Drive Size | Plug Construction | Max. Pressure | Each | |
NPT Male | ||||||||
|---|---|---|---|---|---|---|---|---|
| 150 | 1/16 | __ | __ | 5/16" | Solid | 150 psi @ 72° F | 00000000 | 00000 |
Metric Male | ||||||||
| 150 | __ | M3 | 0.5 | 1/4" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 150 | __ | M6 | 1 | 7/16" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 150 | __ | M10 | 1.25 | 5/8" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 150 | __ | M12 | 1.25 | 11/16" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
UNF Male | ||||||||
| 150 | __ | 10-32 | __ | 5/16" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 150 | __ | 7/16"-20 | __ | 5/8" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 150 | __ | 9/16"-18 | __ | 3/4" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
| 150 | __ | 3/4"-16 | __ | 1 1/4" | Solid | 150 psi @ 72° F | 00000000 | 0000 |
High-Pressure Aluminum Threaded Pipe Fittings
Also known as Pressure Class 3000 fittings, these have the highest pressure rating of all the aluminum pipe fittings we offer. They are lightweight with good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Caps
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
Plugs with External Hex Drive
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
Plugs with External Square Drive
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum