Material Material |
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For Pipe Material For Pipe Material |
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Length Length |
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Maximum Pressure Maximum Pressure |
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Maximum Steam Pressure Maximum Steam Pressure |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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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Hex Width Hex Width |
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Wall Thickness Wall Thickness |
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Threading Threading |
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![]() | Threaded on Both Ends |
![]() | Fully Threaded |
Gasket Material Gasket Material |
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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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Medium-Pressure Stainless Steel Threaded Pipe Fittings
Choose these fittings when you want the same high-quality found in our low-pressure pipe fittings, but need more strength to handle higher pressures.
Fittings that meet ANSI/MSS SP-114 adhere to high-quality standards for heat treating, material thickness, and marking.
304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance. Alloy 20 stainless steel fittings have the best corrosion resistance of all the stainless steel fittings we offer. Alloy 20 stainless steel is also known as Carpenter 20 and resists cracking from stress and corrosion.
Union connectors separate into three pieces so you can access your line without unthreading pipe connections.
Threaded female x butt weld straight adapters are also known as half couplings.
Fittings with intermittent swivel rotate 360° as needed to allow movement in a rigid metal piping system.
BSPP male threads have a gasket to protect against leaks.
Fluoroelastomer gaskets withstand high and low temperatures like silicone gaskets do, and also have some resistance to fuel and oil. EPDM gaskets resist water, steam, ethanol, and ethylene glycol.
For technical drawings and 3-D models, click on a part number.

- For Use With:
Alloy 20 connectors: Air, Steam, Water
All other connectors: Air, Natural Gas, Oil, Steam, Water - Pressure Class: 1000
- Specifications Met:
Alloy 20 connectors: ANSI/MSS SP-114, ASME B1.20.1, ASTM B473
All other connectors: ANSI/MSS SP-114, ASTM A182 - Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
304 Stainless Steel | ||||
---|---|---|---|---|
NPT Female | ||||
1/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 0000 |
3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 0000 |
1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
3/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
1 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
1 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 |
1 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 |
2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 |
2 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 |
3 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 |
4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 |
316 Stainless Steel | ||||
NPT Female | ||||
1/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 0000 |
1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
3/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
1 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
1 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
1 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 |
2 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 |
3 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 |
4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 |
Alloy 20 Stainless Steel | ||||
NPT Female | ||||
1/8 | 1,000 psi @ 72° F | 560 psi @ 360° F | 0000000 | 00000 |
1/2 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 00000 |
3/4 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |
1 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |

- For Use With:
316 Stainless Steel: Air, Coolant, Natural Gas, Oil, Steam, Water
Alloy 20 Stainless Steel: Air, Steam, Water - Pressure Class:
316 Stainless Steel: 150
Alloy 20 Stainless Steel: Not Rated - Specifications Met: See Table
- Pipe Nipples and Pipe:
316 Stainless Steel: Use Schedule 40 316/316L stainless steel
Alloy 20 Stainless Steel: Use Schedule 40 alloy 20 stainless steel - Flanges:
316 Stainless Steel: Use 316/316L stainless steel
Alloy 20 Stainless Steel: Use Class 150 alloy 20 stainless steel
Pipe Size | Max. Pressure | Max. Steam Pressure | Gasket Material | Specifications Met | Each | |
316 Stainless Steel | ||||||
---|---|---|---|---|---|---|
NPT Male | ||||||
1/4 | 507 psi @ 72° F | 507 psi @ 350° F | __ | __ | 00000000 | 000000 |
3/8 | 507 psi @ 72° F | 507 psi @ 350° F | __ | __ | 00000000 | 00000 |
1/2 | 507 psi @ 72° F | 507 psi @ 350° F | __ | __ | 00000000 | 00000 |
3/4 | 507 psi @ 72° F | 507 psi @ 350° F | __ | __ | 00000000 | 00000 |
1 | 507 psi @ 72° F | 507 psi @ 350° F | __ | __ | 00000000 | 00000 |
BSPP Male | ||||||
1/4 | 507 psi @ 72° F | 507 psi @ 350° F | Fluoroelastomer Rubber | __ | 00000000 | 00000 |
1/2 | 507 psi @ 72° F | 507 psi @ 350° F | Fluoroelastomer Rubber | __ | 00000000 | 00000 |
3/4 | 507 psi @ 72° F | 507 psi @ 350° F | Fluoroelastomer Rubber | __ | 00000000 | 00000 |
Alloy 20 Stainless Steel | ||||||
NPT Male | ||||||
1/4 | Not Rated | Not Rated | __ | ASME B1.20.1, ASTM B473 | 0000000 | 000000 |
3/4 | Not Rated | Not Rated | __ | ASME B1.20.1, ASTM B473 | 0000000 | 000000 |
1 | Not Rated | Not Rated | __ | ASME B1.20.1, ASTM B473 | 0000000 | 000000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 1000
- Specifications Met: ANSI/MSS SP-114, ASTM A182
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
304 Stainless Steel | 316 Stainless Steel | |||||
---|---|---|---|---|---|---|
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | Each | ||
NPT Female | ||||||
1/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 000000 | 00000000 | 000000 |
1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
3/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 000000 |
1 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
1 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
2 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |

- For Use With: Air, Coolant, Natural Gas, Oil, Steam, Water
- Pressure Class : 150
316 Stainless Steel | |||||
---|---|---|---|---|---|
Pipe Size | Maximum Pressure | Maximum Steam Pressure | Gasket Material | Each | |
BSPP Male×BSPT Male | |||||
3/8 | 507 psi @ 72° F | 507 psi @ 350° F | EPDM Rubber | 00000000 | 000000 |
3/8 | 507 psi @ 72° F | 507 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/2 | 507 psi @ 72° F | 507 psi @ 350° F | EPDM Rubber | 00000000 | 00000 |
1/2 | 507 psi @ 72° F | 507 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/4 | 507 psi @ 72° F | 507 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class : 1000
- Specifications Met: ANSI/MSS SP-114, ASTM A182
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
304 Stainless Steel | 316 Stainless Steel | |||||
---|---|---|---|---|---|---|
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | Each | ||
NPT Female × Butt Weld | ||||||
1/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 0000 | 00000000 | 0000 |
3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 0000 | 00000000 | 0000 |
1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 0000 | 00000000 | 0000 |
3/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 0000 | 00000000 | 00000 |
1 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
1 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
2 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
3 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |


- For Use With: Air, Coolant, Natural Gas, Oil, Steam, Water
- Pressure Class : 150
- Specifications Met: ASTM A314, ASTM A320, ASTM A582
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
316 Stainless Steel | |||||
---|---|---|---|---|---|
Pipe Size | Max. Pressure | Max. Steam Pressure | Gasket Material | Each | |
NPT Female × BSPP Male | |||||
1/16 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 000000 |
1/8 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/8 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/2 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
NPT Female × BSPT Male | |||||
1/16 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
BSPP Female × NPT Male | |||||
1/16 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
BSPT Female × NPT Male | |||||
1/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |


- For Use With: Air, Coolant, Natural Gas, Oil, Steam, Water
- Pressure Class : 150
- Specifications Met: ASTM A314, ASTM A320, ASTM A582
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
Pipe Size | 316 Stainless Steel | |||||
---|---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Gasket Material | Each | |
NPT Female × BSPP Male | ||||||
1/16 | 1/8 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 000000 |
1/16 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/8 | 1/16 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/8 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/8 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/8 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/4 | 1/16 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/4 | 1/8 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/4 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/4 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/4 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/4 | 1 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/8 | 1/8 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/8 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/8 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/8 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/8 | 1 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/2 | 1/8 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/2 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/2 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/2 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1/2 | 1 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/4 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/4 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/4 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
3/4 | 1 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
1 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
NPT Female × BSPT Male | ||||||
1/16 | 1/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/8 | 1/16 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/8 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/8 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 1/16 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 1/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 1/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 1 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/4 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/4 | 1 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
BSPP Female × NPT Male | ||||||
1/8 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/8 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 1/16 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 1/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 1 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 1 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/4 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/4 | 3/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/4 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/4 | 1 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
BSPT Female × NPT Male | ||||||
1/8 | 1/16 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/8 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 1/8 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/4 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/8 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 1/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1/2 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
3/4 | 1/2 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
1 | 3/4 | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |

- For Use With: Air, Water, Steam
- Pressure Class: Not Rated
- Specifications Met: ASTM B473, ASME B16.11, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
Pipe Size | Alloy 20 Stainless Steel | ||||
---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male × NPT Female | |||||
1/4 | 1/8 | Not Rated | Not Rated | 0000000 | 000000 |
3/8 | 1/4 | Not Rated | Not Rated | 0000000 | 00000 |
1/2 | 1/4 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |
3/4 | 1/2 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |
1 | 3/4 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class : 1000
- Specifications Met: ANSI/MSS SP-114, ASTM A182
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
Pipe Size | 304 Stainless Steel | 316 Stainless Steel | |||||
---|---|---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Each | Each | ||
NPT Female | |||||||
1/4 | 1/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 000000 |
3/8 | 1/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
3/8 | 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1/2 | 1/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1/2 | 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1/2 | 3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
3/4 | 1/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 000000 | 00 |
3/4 | 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
3/4 | 3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
3/4 | 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 | 1/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 000000 | 00 |
1 | 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 | 3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 | 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 | 3/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 1/4 | 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 1/4 | 3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 000000 | 00 | 00000000 | 00000 |
1 1/4 | 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 1/4 | 3/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 1/4 | 1 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 1/2 | 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 1/2 | 3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 000000 | 00 |
1 1/2 | 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 1/2 | 3/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 1/2 | 1 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
1 1/2 | 1 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 00000 | 00000000 | 00000 |
2 | 3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
2 | 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 00000 |
2 | 3/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
2 | 1 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
2 | 1 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
2 | 1 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
2 1/2 | 2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
3 | 1 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
3 | 2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
4 | 3 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 000000 | 00 |

- For Use With: Air, Water, Steam
- Pressure Class : 150
- Specifications Met: ANSI/MSS SP-114, ASTM B351, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
Alloy 20 Stainless Steel | ||||
---|---|---|---|---|
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female | ||||
1/4 | 1,000 psi @ 72° F | 560 psi @ 360° F | 0000000 | 0000000 |
3/8 | 1,000 psi @ 72° F | 560 psi @ 360° F | 0000000 | 000000 |
1/2 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |
3/4 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |
1 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |
1 1/2 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |
2 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |

- For Use With: Air, Water, Steam
- Pressure Class: See Table
- Specifications Met: See Table
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
Alloy 20 Stainless Steel | ||||||
---|---|---|---|---|---|---|
Pressure Class | Pipe Size | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPT Female | ||||||
1000 | 1/4 | 1,000 psi @ 72° F | 560 psi @ 360° F | ANSI/MSS SP-114, ASME B1.20.1, ASTM B473 | 0000000 | 0000000 |
1000 | 3/8 | 1,000 psi @ 72° F | 560 psi @ 360° F | ANSI/MSS SP-114, ASME B1.20.1, ASTM B473 | 0000000 | 000000 |
150 | 1/2 | 300 psi @ 72° F | 150 psi @ 360° F | ANSI/MSS SP-114, ASME B1.20.1, ASTM B351 | 0000000 | 000000 |
150 | 3/4 | 300 psi @ 72° F | 150 psi @ 360° F | ANSI/MSS SP-114, ASME B1.20.1, ASTM B351 | 0000000 | 000000 |
150 | 1 | 300 psi @ 72° F | 150 psi @ 360° F | ANSI/MSS SP-114, ASME B1.20.1, ASTM B351 | 0000000 | 000000 |
150 | 1 1/2 | 300 psi @ 72° F | 150 psi @ 360° F | ANSI/MSS SP-114, ASME B1.20.1, ASTM B351 | 0000000 | 000000 |
150 | 2 | 300 psi @ 72° F | 150 psi @ 360° F | ANSI/MSS SP-114, ASME B1.20.1, ASTM B351 | 0000000 | 000000 |

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class : 1000
- Specifications Met: ANSI/MSS SP-114, ASTM A182
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
304 Stainless Steel | 316 Stainless Steel | |||||
---|---|---|---|---|---|---|
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | Each | ||
NPT Female | ||||||
1/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 0000 | 00000000 | 0000 |
3/8 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 0000 | 00000000 | 00000 |
1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 0000 | 00000000 | 00000 |
3/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
1 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
1 1/4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
1 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 00000 |
2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 0000000 | 00000 | 00000000 | 000000 |
2 1/2 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
3 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |
4 | 1,000 psi @ 72° F | 650 psi @ 350° F | 00000000 | 000000 | 00000000 | 000000 |

- For Use With: Air, Water, Steam
- Pressure Class: Not Rated
- Specifications Met: ASME B16.11, ASTM B473, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
Alloy 20 Stainless Steel | ||||
---|---|---|---|---|
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male | ||||
1/8 | Not Rated | Not Rated | 0000000 | 000000 |
1/4 | Not Rated | Not Rated | 0000000 | 00000 |
3/8 | Not Rated | Not Rated | 0000000 | 00000 |
1/2 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 00000 |
3/4 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 00000 |
1 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 000000 |
1 1/2 | Not Rated | Not Rated | 0000000 | 000000 |
2 | Not Rated | Not Rated | 0000000 | 000000 |
Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe
Designed for low-pressure flow applications, this pipe is also known as Schedule 40. Alloy 20 stainless steel pipe has the best corrosion resistance of all the stainless steel pipe we offer. Alloy 20 stainless steel is also known as Carpenter 20 and resists cracking from stress and corrosion.
Seamless pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.
Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.
For technical drawings and 3-D models, click on a part number.

- For Use With: Water, Steam, Air
- Specifications Met: ASTM B729, ASME B1.20.1
- Fittings: Use Class 150 stainless steel
- Flanges: Use Class 150 stainless steel
Lg. | Construction | Each | |
1/2 Pipe Size | |||
---|---|---|---|
2" | Seamless | 0000000 | 000000 |
3" | Seamless | 0000000 | 00000 |
4" | Seamless | 0000000 | 00000 |
6" | Seamless | 0000000 | 000000 |
3/4 Pipe Size | |||
2" | Seamless | 0000000 | 00000 |
3" | Seamless | 0000000 | 00000 |
4" | Seamless | 0000000 | 00000 |
6" | Seamless | 0000000 | 000000 |
1 Pipe Size | |||
2" | Seamless | 0000000 | 00000 |
3" | Seamless | 0000000 | 00000 |
4" | Seamless | 0000000 | 000000 |
1 1/2 Pipe Size | |||
2" | Seamless | 0000000 | 000000 |
3" | Seamless | 0000000 | 000000 |
2 Pipe Size | |||
6" | Seamless | 0000000 | 000000 |