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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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.
More
Low-Pressure Plated Brass Threaded Pipe Fittings
Used in low-pressure pipe lines, these brass fittings have a plating that makes them shiny and improves corrosion resistance.
Chrome-plated brass fittings are shinier and withstand corrosion better than nickel-plated brass fittings.
Union connectors separate into three pieces so you can access your line without unthreading pipe connections.
Locknuts thread onto the male end of a fitting to provide extra holding power so the fitting won’t loosen from vibration.
Female x male 90° elbow adapters are also known as street elbows.
For technical drawings and 3-D models, click on a part number.

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female | ||||
---|---|---|---|---|
Chrome-Plated Brass | ||||
1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 000000 |
1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female | ||||
---|---|---|---|---|
Chrome-Plated Brass | ||||
1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 000000 |
1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | |||||
---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male × NPT Female | |||||
Chrome-Plated Brass | |||||
1/4 | 1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/8 | 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 0000 |
1/2 | 3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 0000 |
3/4 | 3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | |||||
---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male × NPT Female | |||||
Chrome-Plated Brass | |||||
1/4 | 1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/8 | 1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 0000 |
3/8 | 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 0000 |
1/2 | 1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 3/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | |||||
---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female | |||||
Chrome-Plated Brass | |||||
1/4 | 1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 000000 |
3/8 | 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 3/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female | ||||
---|---|---|---|---|
Chrome-Plated Brass | ||||
1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 000000 |
1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female | ||||
---|---|---|---|---|
Chrome-Plated Brass | ||||
1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 000000 |
1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female × NPT Male | ||||
---|---|---|---|---|
Chrome-Plated Brass | ||||
1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 000000 |
1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female | ||||
---|---|---|---|---|
Chrome-Plated Brass | ||||
1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 000000 |
1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female | ||||
---|---|---|---|---|
Chrome-Plated Brass | ||||
1/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 000000 |
1/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/8 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 125
- Specifications Met: ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
Pipe Size | Plug Construction | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male | |||||
---|---|---|---|---|---|
Chrome-Plated Brass | |||||
1/8 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 000000 |
1/4 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/8 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1/2 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
3/4 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
1 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
FM-Approved Low-Pressure Cast Iron Threaded Pipe Fittings
Suitable for use in fire-protection applications, these pipe fittings are brittle and can be quickly opened with the strike of a sledge hammer. They are also known as Pressure Class 125 fittings. Use in noncorrosive environments.
Offset straight reducers are also known as eccentric reducers; they connect one pipe to another smaller-diameter pipe and have the centers offset so your line can drain.
Inline tees are also known as branch tees.
For technical drawings and 3-D models, click on a part number.

- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class : 125
- Specifications Met: FM Approved, UL Listed, ASTM A126, ASME B1.20.1, ASME B16.14
- Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | ||||||
---|---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Male × NPT Female | ||||||
1 1/4 | 3/8 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |
1 1/4 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 0000 |
1 1/4 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 0000 |
1 1/2 | 3/8 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
1 1/2 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
1 1/2 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
1 1/2 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 0000 |
2 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
2 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
2 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
2 | 1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
2 1/2 | 1 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
3 | 2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
3 | 2 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
4 | 3 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |

- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class : 125
- Specifications Met: FM Approved, UL Listed, ASTM A126, ASME B1.20.1, ASME B16.4
- Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | ||||||
---|---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | ||||||
3/4 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
1 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 1 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 1/2 | 2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
3 | 1 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
3 | 2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |


- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class : 125
- Specifications Met: FM Approved, UL Listed, ASTM A126, ASME B1.20.1, ASME B16.4
- Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | ||||||
---|---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | ||||||
3/4 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
1 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
1 1/2 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
1 1/2 | 1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
2 | 1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
2 | 1 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |

- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class : 125
- Specifications Met: FM Approved, UL Listed, ASTM A126, ASME B1.20.1, ASME B16.4
- Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | |||||
---|---|---|---|---|---|
1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 0000 |
1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
3 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |

- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class : 125
- Specifications Met: FM Approved, UL Listed, ASTM A126, ASME B1.20.1, ASME B16.4
- Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | |||||
---|---|---|---|---|---|
1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
3 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |

- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class : 125
- Specifications Met: FM Approved, UL Listed, ASTM A126, ASME B1.20.1, ASME B16.4
- Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | |||||
---|---|---|---|---|---|
1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
3 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |

- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class : 125
- Specifications Met: FM Approved, UL Listed, ASTM A126, ASME B1.20.1, ASME B16.4
- Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | ||||||
---|---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | ||||||
3/4 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 000000 |
1 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/4 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
1 1/2 | 1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
2 | 1 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 00000000 | 00000 |
Low-Pressure Iron and Steel Threaded Pipe Fittings
Use these fittings for low-pressure applications in noncorrosive environments.
For technical drawings and 3-D models, click on a part number.

- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class: See table
- Specifications Met: ASME B16.14
- Pipe Nipples and Pipe: Use Schedule 40 steel

- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class: See table
- Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | ||||||||
---|---|---|---|---|---|---|---|---|
(A) | (B) | Pressure Class | Max. Pressure | Max. Steam Pressure | Material | Specifications Met | Each | |
NPT Male × NPT Female | ||||||||
1 1/2 | 1/4 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 000000 |
1 1/2 | 3/8 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
1 1/2 | 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
2 | 1/4 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
2 | 3/8 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
2 | 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
2 | 3/4 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
2 1/2 | 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
2 1/2 | 3/4 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
2 1/2 | 1 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
2 1/2 | 1 1/4 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
2 1/2 | 1 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 | 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 | 3/4 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 | 1 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 | 1 1/4 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 | 1 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 | 2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 | 2 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 1/2 | 1 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 1/2 | 1 1/4 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 1/2 | 1 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 1/2 | 2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 1/2 | 2 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
3 1/2 | 3 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
4 | 1 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
4 | 1 1/4 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
4 | 1 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
4 | 2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
4 | 2 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
4 | 3 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
6 | 2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
6 | 2 1/2 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 000000 |
6 | 3 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
6 | 4 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |
6 | 5 | 125 | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | ASME B16.14 | 000000000 | 00000 |

- For Use With: Air, Steam, Oil, Water, Natural Gas
- Presure Class:
Steel: 150
Iron: 125 - Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | Plug Construction | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Male | ||||||
---|---|---|---|---|---|---|
2 1/2 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |
3 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
3 1/2 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
4 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |

- For Use With:
NPT and BSPT: Air, Natural Gas, Oil, Steam, Water
NPTF: Air, Natural Gas, Steam, Water - Pressure Class:
NPT Iron: 125
BSPT Iron: 150 - Specifications Met:
See table - Pipe Nipples and Pipe:
NPT and BPST: Use Schedule 40 steel
Pipe Size | Plug Construction | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Male | ||||||
---|---|---|---|---|---|---|
2 1/2 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |
3 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
3 1/2 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
4 | Hollow | 175 psi @ 72° F | 125 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |