Threading Threading |
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Threaded on Both Ends |
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Threaded on One End |
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Fully Threaded |
For Use With For Use With |
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Connection Style Connection Style |
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Threaded |
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Butt Weld |
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Socket Connect |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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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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Super-Thick-Wall Steel Threaded Pipe Nipples and Pipe
Also known as Schedule XXH, this heavy duty pipe has the thickest, strongest walls of all the threaded pipe we offer. Pipe is seamless, so it has a smooth interior for unrestricted flow. Use in noncorrosive environments.
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.
Fully Threaded

- For Use With:
1 1/4 Pipe Size: Air, Hydraulic Fluid, Nitrogen Gas, Oil, Steam, Water
All other sizes: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water - Specifications Met: ASTM A733, ASME B1.20.1, ASTM A106
- Fittings: Use Class 6000 steel
- Flanges: Use Class 1500 steel
Threaded on Both Ends

- For Use With:
Steel: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
Iron: Air, Hydraulic Fluid, Nitrogen Gas, Oil, Steam, Water - Specifications Met: ASTM A733, ASME B1.20.1, ASTM A106
- Fittings: Use Class 6000 steel
- Flanges: Use Class 1500 steel
Lg. | Thread Type | Construction | Material | Each | |
1/2 Pipe Size —08 Dash Size | |||||
---|---|---|---|---|---|
1 1/2" | NPT | Seamless | Steel | 0000000 | 000000 |
2" | NPT | Seamless | Steel | 0000000 | 00000 |
3" | NPT | Seamless | Steel | 0000000 | 00000 |
4" | NPT | Seamless | Steel | 0000000 | 00000 |
6" | NPT | Seamless | Steel | 0000000 | 00000 |
12" | NPT | Seamless | Steel | 0000000 | 00000 |
18" | NPT | Seamless | Steel | 0000000 | 00000 |
24" | NPT | Seamless | Steel | 0000000 | 00000 |
36" | NPT | Seamless | Steel | 0000000 | 000000 |
3/4 Pipe Size —12 Dash Size | |||||
1 1/2" | NPT | Seamless | Steel | 0000000 | 00000 |
2" | NPT | Seamless | Steel | 0000000 | 00000 |
3" | NPT | Seamless | Steel | 0000000 | 00000 |
4" | NPT | Seamless | Steel | 0000000 | 00000 |
6" | NPT | Seamless | Steel | 0000000 | 00000 |
12" | NPT | Seamless | Steel | 0000000 | 00000 |
18" | NPT | Seamless | Steel | 0000000 | 00000 |
24" | NPT | Seamless | Steel | 0000000 | 000000 |
36" | NPT | Seamless | Steel | 0000000 | 000000 |
1 Pipe Size —16 Dash Size | |||||
2" | NPT | Seamless | Steel | 0000000 | 00000 |
3" | NPT | Seamless | Steel | 0000000 | 00000 |
4" | NPT | Seamless | Steel | 0000000 | 00000 |
6" | NPT | Seamless | Steel | 0000000 | 00000 |
12" | NPT | Seamless | Steel | 0000000 | 00000 |
18" | NPT | Seamless | Steel | 0000000 | 000000 |
24" | NPT | Seamless | Steel | 0000000 | 000000 |
36" | NPT | Seamless | Steel | 0000000 | 000000 |
1 1/2 Pipe Size —24 Dash Size | |||||
2" | NPT | Seamless | Steel | 0000000 | 00000 |
3" | NPT | Seamless | Steel | 0000000 | 00000 |
4" | NPT | Seamless | Steel | 0000000 | 00000 |
6" | NPT | Seamless | Steel | 0000000 | 00000 |
12" | NPT | Seamless | Steel | 0000000 | 000000 |
18" | NPT | Seamless | Steel | 0000000 | 000000 |
24" | NPT | Seamless | Steel | 0000000 | 000000 |
36" | NPT | Seamless | Steel | 0000000 | 000000 |
2 Pipe Size —32 Dash Size | |||||
3" | NPT | Seamless | Steel | 0000000 | 00000 |
4" | NPT | Seamless | Steel | 0000000 | 00000 |
6" | NPT | Seamless | Steel | 0000000 | 00000 |
12" | NPT | Seamless | Steel | 0000000 | 000000 |
18" | NPT | Seamless | Steel | 0000000 | 000000 |
24" | NPT | Seamless | Steel | 0000000 | 000000 |
36" | NPT | Seamless | Steel | 0000000 | 000000 |
Threaded on One End

- For Use With:
Steel: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
Iron: Air, Hydraulic Fluid, Nitrogen Gas, Oil, Steam, Water - Specifications Met: ASTM A733, ASME B1.20.1, ASTM A106
- Fittings: Use Class 6000 steel
- Flanges: Use Class 1500 steel
Lg. | Thread Type | Construction | Material | Each | |
1/2 Pipe Size—08 Dash Size | |||||
---|---|---|---|---|---|
1 1/2" | NPT | Seamless | Steel | 0000000 | 00000 |
2" | NPT | Seamless | Steel | 0000000 | 00000 |
3" | NPT | Seamless | Steel | 0000000 | 00000 |
4" | NPT | Seamless | Steel | 0000000 | 00000 |
6" | NPT | Seamless | Steel | 0000000 | 00000 |
3/4 Pipe Size—12 Dash Size | |||||
1 1/2" | NPT | Seamless | Steel | 0000000 | 00000 |
2" | NPT | Seamless | Steel | 0000000 | 00000 |
3" | NPT | Seamless | Steel | 0000000 | 00000 |
4" | NPT | Seamless | Steel | 0000000 | 00000 |
6" | NPT | Seamless | Steel | 0000000 | 00000 |
1 Pipe Size—16 Dash Size | |||||
2" | NPT | Seamless | Steel | 0000000 | 00000 |
3" | NPT | Seamless | Steel | 0000000 | 00000 |
4" | NPT | Seamless | Steel | 0000000 | 00000 |
6" | NPT | Seamless | Steel | 0000000 | 00000 |
1 1/2 Pipe Size—24 Dash Size | |||||
2" | NPT | Seamless | Steel | 0000000 | 00000 |
3" | NPT | Seamless | Steel | 0000000 | 00000 |
4" | NPT | Seamless | Steel | 0000000 | 00000 |
6" | NPT | Seamless | Steel | 0000000 | 00000 |
2 Pipe Size—32 Dash Size | |||||
3" | NPT | Seamless | Steel | 0000000 | 00000 |
4" | NPT | Seamless | Steel | 0000000 | 00000 |
6" | NPT | Seamless | Steel | 0000000 | 00000 |