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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Standard-Wall Chrome-Plated Brass
Threaded Pipe Nipples and Pipe
The polished chrome plating gives this brass pipe a bright, shiny appearance and provides extra corrosion resistance. Also known as Schedule 40 pipe, it is commonly used in low-pressure applications. Pipe is seamless so it has a smooth interior for unrestricted flow.
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: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: ASTM B43, ASTM B687, ASTM B456
- Fittings: Use Class 125 brass

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: ASTM B43, ASTM B687, ASTM B456
- Fittings: Use Class 125 brass
Lg. | Thread Type | Construction | Each | |
1/8 Pipe Size | ||||
---|---|---|---|---|
1 1/2" | NPT | Seamless | 00000000 | 00000 |
2" | NPT | Seamless | 00000000 | 0000 |
3" | NPT | Seamless | 00000000 | 00000 |
3 1/2" | NPT | Seamless | 00000000 | 00000 |
4" | NPT | Seamless | 00000000 | 00000 |
5" | NPT | Seamless | 00000000 | 00000 |
6" | NPT | Seamless | 00000000 | 00000 |
8" | NPT | Seamless | 00000000 | 00000 |
10" | NPT | Seamless | 00000000 | 00000 |
12" | NPT | Seamless | 00000000 | 00000 |
1/4 Pipe Size | ||||
1 1/2" | NPT | Seamless | 00000000 | 0000 |
2" | NPT | Seamless | 00000000 | 00000 |
3" | NPT | Seamless | 00000000 | 00000 |
3 1/2" | NPT | Seamless | 00000000 | 00000 |
4" | NPT | Seamless | 00000000 | 00000 |
4 1/2" | NPT | Seamless | 00000000 | 00000 |
5" | NPT | Seamless | 00000000 | 00000 |
6" | NPT | Seamless | 00000000 | 00000 |
8" | NPT | Seamless | 00000000 | 00000 |
10" | NPT | Seamless | 00000000 | 00000 |
12" | NPT | Seamless | 00000000 | 00000 |
3/8 Pipe Size | ||||
1 1/2" | NPT | Seamless | 00000000 | 0000 |
2" | NPT | Seamless | 00000000 | 0000 |
3" | NPT | Seamless | 00000000 | 00000 |
3 1/2" | NPT | Seamless | 00000000 | 00000 |
4" | NPT | Seamless | 00000000 | 00000 |
4 1/2" | NPT | Seamless | 00000000 | 00000 |
5" | NPT | Seamless | 00000000 | 00000 |
6" | NPT | Seamless | 00000000 | 00000 |
8" | NPT | Seamless | 00000000 | 00000 |
10" | NPT | Seamless | 00000000 | 00000 |
12" | NPT | Seamless | 00000000 | 00000 |
1/2 Pipe Size | ||||
1 1/2" | NPT | Seamless | 00000000 | 0000 |
2" | NPT | Seamless | 00000000 | 00000 |
3" | NPT | Seamless | 00000000 | 00000 |
3 1/2" | NPT | Seamless | 00000000 | 00000 |
4" | NPT | Seamless | 00000000 | 00000 |
4 1/2" | NPT | Seamless | 00000000 | 00000 |
5" | NPT | Seamless | 00000000 | 00000 |
6" | NPT | Seamless | 00000000 | 00000 |
8" | NPT | Seamless | 00000000 | 00000 |
10" | NPT | Seamless | 00000000 | 00000 |
12" | NPT | Seamless | 00000000 | 00000 |
3/4 Pipe Size | ||||
1 1/2" | NPT | Seamless | 00000000 | 00000 |
2" | NPT | Seamless | 00000000 | 00000 |
3" | NPT | Seamless | 00000000 | 00000 |
3 1/2" | NPT | Seamless | 00000000 | 00000 |
4" | NPT | Seamless | 00000000 | 00000 |
5" | NPT | Seamless | 00000000 | 00000 |
6" | NPT | Seamless | 00000000 | 00000 |
8" | NPT | Seamless | 00000000 | 00000 |
10" | NPT | Seamless | 00000000 | 00000 |
12" | NPT | Seamless | 00000000 | 00000 |
1 Pipe Size | ||||
2" | NPT | Seamless | 00000000 | 00000 |
3" | NPT | Seamless | 00000000 | 00000 |
3 1/2" | NPT | Seamless | 00000000 | 00000 |
4" | NPT | Seamless | 00000000 | 00000 |
5" | NPT | Seamless | 00000000 | 00000 |
6" | NPT | Seamless | 00000000 | 00000 |
8" | NPT | Seamless | 00000000 | 00000 |
10" | NPT | Seamless | 00000000 | 000000 |
12" | NPT | Seamless | 00000000 | 000000 |
Thick-Wall Brass Threaded Pipe Nipples and Pipe
A thick wall gives this Schedule 80 pipe the strength to handle high-pressure applications. It is brass for good corrosion resistance. Pipe is seamless so it has a smooth interior for unrestricted flow.
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: Air, Natural Gas, Oil, Water
- Specifications Met: ASME B1.20.1, ASTM B43, ASTM B687
- Fittings: Use Class 250 brass
Pipe Size | Lg. | Thread Type | Construction | Each | |
1/8 | 3/4" | NPT | Seamless | 0000000 | 00000 |
1/4 | 7/8" | NPT | Seamless | 0000000 | 0000 |
3/8 | 1" | NPT | Seamless | 0000000 | 0000 |
1/2 | 1 1/8" | NPT | Seamless | 0000000 | 0000 |
3/4 | 1 3/8" | NPT | Seamless | 0000000 | 00000 |
1 | 1 1/2" | NPT | Seamless | 0000000 | 00000 |
1 1/4 | 1 5/8" | NPT | Seamless | 0000000 | 00000 |
1 1/2 | 1 3/4" | NPT | Seamless | 0000000 | 00000 |
2 | 2" | NPT | Seamless | 0000000 | 00000 |
2 1/2 | 2 1/2" | NPT | Seamless | 00000000 | 000000 |

- For Use With: Air, Natural Gas, Oil, Water
- Specifications Met: ASME B1.20.1, ASTM B43, ASTM B687; except
Lengths greater than 12": ASTM B43 - Fittings: Use Class 250 brass
Lg. | Thread Type | Construction | Each | |
1/8 Pipe Size | ||||
---|---|---|---|---|
1 1/2" | NPT | Seamless | 0000000 | 00000 |
2" | NPT | Seamless | 0000000 | 0000 |
2 1/2" | NPT | Seamless | 0000000 | 0000 |
3" | NPT | Seamless | 0000000 | 0000 |
3 1/2" | NPT | Seamless | 0000000 | 0000 |
4" | NPT | Seamless | 0000000 | 00000 |
5" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
8" | NPT | Seamless | 0000000 | 00000 |
10" | NPT | Seamless | 00000000 | 00000 |
12" | NPT | Seamless | 00000000 | 00000 |
18" | NPT | Seamless | 0000000 | 00000 |
24" | NPT | Seamless | 0000000 | 00000 |
36" | NPT | Seamless | 0000000 | 000000 |
48" | NPT | Seamless | 0000000 | 000000 |
60" | NPT | Seamless | 0000000 | 000000 |
72" | NPT | Seamless | 0000000 | 000000 |
1/4 Pipe Size | ||||
1 1/2" | NPT | Seamless | 0000000 | 0000 |
2" | NPT | Seamless | 0000000 | 0000 |
2 1/2" | NPT | Seamless | 0000000 | 0000 |
3" | NPT | Seamless | 0000000 | 00000 |
3 1/2" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
5" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
8" | NPT | Seamless | 0000000 | 00000 |
10" | NPT | Seamless | 00000000 | 00000 |
12" | NPT | Seamless | 00000000 | 00000 |
18" | NPT | Seamless | 0000000 | 00000 |
24" | NPT | Seamless | 0000000 | 00000 |
36" | NPT | Seamless | 0000000 | 000000 |
48" | NPT | Seamless | 0000000 | 000000 |
60" | NPT | Seamless | 0000000 | 000000 |
72" | NPT | Seamless | 0000000 | 000000 |
3/8 Pipe Size | ||||
1 1/2" | NPT | Seamless | 0000000 | 0000 |
2" | NPT | Seamless | 0000000 | 00000 |
2 1/2" | NPT | Seamless | 0000000 | 00000 |
3" | NPT | Seamless | 0000000 | 00000 |
3 1/2" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
5" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
8" | NPT | Seamless | 0000000 | 00000 |
10" | NPT | Seamless | 00000000 | 00000 |
12" | NPT | Seamless | 00000000 | 00000 |
18" | NPT | Seamless | 0000000 | 00000 |
24" | NPT | Seamless | 0000000 | 000000 |
36" | NPT | Seamless | 0000000 | 000000 |
48" | NPT | Seamless | 0000000 | 000000 |
60" | NPT | Seamless | 0000000 | 000000 |
72" | NPT | Seamless | 0000000 | 000000 |
1/2 Pipe Size | ||||
1 1/2" | NPT | Seamless | 0000000 | 00000 |
2" | NPT | Seamless | 0000000 | 00000 |
2 1/2" | NPT | Seamless | 0000000 | 00000 |
3" | NPT | Seamless | 0000000 | 00000 |
3 1/2" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
5" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
8" | NPT | Seamless | 0000000 | 00000 |
10" | NPT | Seamless | 00000000 | 00000 |
12" | NPT | Seamless | 00000000 | 00000 |
18" | NPT | Seamless | 0000000 | 000000 |
24" | NPT | Seamless | 0000000 | 000000 |
36" | NPT | Seamless | 0000000 | 000000 |
48" | NPT | Seamless | 0000000 | 000000 |
60" | NPT | Seamless | 0000000 | 000000 |
72" | NPT | Seamless | 0000000 | 000000 |
3/4 Pipe Size | ||||
1 1/2" | NPT | Seamless | 0000000 | 00000 |
2" | NPT | Seamless | 0000000 | 00000 |
2 1/2" | NPT | Seamless | 0000000 | 00000 |
3" | NPT | Seamless | 0000000 | 00000 |
3 1/2" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
5" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
8" | NPT | Seamless | 0000000 | 00000 |
10" | NPT | Seamless | 00000000 | 00000 |
12" | NPT | Seamless | 00000000 | 00000 |
18" | NPT | Seamless | 0000000 | 000000 |
24" | NPT | Seamless | 0000000 | 000000 |
36" | NPT | Seamless | 0000000 | 000000 |
48" | NPT | Seamless | 0000000 | 000000 |
60" | NPT | Seamless | 0000000 | 000000 |
72" | NPT | Seamless | 0000000 | 000000 |
1 Pipe Size | ||||
2" | NPT | Seamless | 0000000 | 00000 |
2 1/2" | NPT | Seamless | 0000000 | 00000 |
3" | NPT | Seamless | 0000000 | 00000 |
3 1/2" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
5" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
8" | NPT | Seamless | 00000000 | 00000 |
10" | NPT | Seamless | 00000000 | 000000 |
12" | NPT | Seamless | 00000000 | 000000 |
18" | NPT | Seamless | 0000000 | 000000 |
24" | NPT | Seamless | 0000000 | 000000 |
36" | NPT | Seamless | 0000000 | 000000 |
48" | NPT | Seamless | 0000000 | 000000 |
60" | NPT | Seamless | 0000000 | 000000 |
72" | NPT | Seamless | 0000000 | 000000 |
1 1/4 Pipe Size | ||||
2" | NPT | Seamless | 0000000 | 00000 |
2 1/2" | NPT | Seamless | 0000000 | 00000 |
3" | NPT | Seamless | 0000000 | 00000 |
3 1/2" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
5" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
8" | NPT | Seamless | 00000000 | 000000 |
10" | NPT | Seamless | 00000000 | 000000 |
12" | NPT | Seamless | 00000000 | 000000 |
1 1/2 Pipe Size | ||||
2" | NPT | Seamless | 0000000 | 00000 |
2 1/2" | NPT | Seamless | 0000000 | 00000 |
3" | NPT | Seamless | 0000000 | 00000 |
3 1/2" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
5" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 000000 |
8" | NPT | Seamless | 00000000 | 000000 |
12" | NPT | Seamless | 00000000 | 000000 |
2 Pipe Size | ||||
2 1/2" | NPT | Seamless | 0000000 | 00000 |
3" | NPT | Seamless | 0000000 | 00000 |
3 1/2" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
5" | NPT | Seamless | 0000000 | 000000 |
6" | NPT | Seamless | 0000000 | 000000 |
8" | NPT | Seamless | 00000000 | 000000 |
12" | NPT | Seamless | 00000000 | 000000 |
2 1/2 Pipe Size | ||||
3" | NPT | Seamless | 00000000 | 000000 |
3 1/2" | NPT | Seamless | 00000000 | 000000 |
4" | NPT | Seamless | 00000000 | 000000 |
6" | NPT | Seamless | 00000000 | 000000 |
8" | NPT | Seamless | 00000000 | 000000 |
12" | NPT | Seamless | 00000000 | 000000 |
Standard-Wall Brass Unthreaded Pipe

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: ASTM B43
With two unthreaded ends, this pipe is designed for brazed connections, which are stronger than threaded connections and less likely to leak. It is also known as Schedule 40. Pipe is seamless, so it has a smooth interior for unrestricted flow. It is brass, which has good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Pipe | Brazing Rings | |||||
---|---|---|---|---|---|---|
Lg., ft. | Wall Thick. | Construction | Each | Each | ||
1/8 Pipe Size | ||||||
1 | 0.062" | Seamless | 0000000 | 00000 | 000000 | 00 |
3 | 0.062" | Seamless | 0000000 | 00000 | 000000 | 00 |
6 | 0.062" | Seamless | 0000000 | 00000 | 000000 | 00 |
1/4 Pipe Size | ||||||
1 | 0.082" | Seamless | 0000000 | 00000 | 000000 | 00 |
3 | 0.082" | Seamless | 0000000 | 00000 | 000000 | 00 |
6 | 0.082" | Seamless | 0000000 | 00000 | 000000 | 00 |
3/8 Pipe Size | ||||||
1 | 0.09" | Seamless | 0000000 | 00000 | 000000 | 00 |
3 | 0.09" | Seamless | 0000000 | 00000 | 000000 | 00 |
6 | 0.09" | Seamless | 0000000 | 00000 | 000000 | 00 |
1/2 Pipe Size | ||||||
1 | 0.107" | Seamless | 0000000 | 00000 | 0000000 | 00000 |
3 | 0.107" | Seamless | 0000000 | 00000 | 0000000 | 0000 |
6 | 0.107" | Seamless | 0000000 | 000000 | 0000000 | 0000 |
3/4 Pipe Size | ||||||
1 | 0.114" | Seamless | 0000000 | 00000 | 0000000 | 0000 |
3 | 0.114" | Seamless | 0000000 | 00000 | 0000000 | 0000 |
6 | 0.114" | Seamless | 0000000 | 000000 | 0000000 | 0000 |
1 Pipe Size | ||||||
1 | 0.126" | Seamless | 0000000 | 00000 | 0000000 | 0000 |
3 | 0.126" | Seamless | 0000000 | 000000 | 0000000 | 0000 |
6 | 0.126" | Seamless | 0000000 | 000000 | 0000000 | 0000 |
1 1/4 Pipe Size | ||||||
1 | 0.146" | Seamless | 0000000 | 00000 | 000000 | 00 |
3 | 0.146" | Seamless | 0000000 | 000000 | 000000 | 00 |
6 | 0.146" | Seamless | 0000000 | 000000 | 000000 | 00 |
1 1/2 Pipe Size | ||||||
1 | 0.15" | Seamless | 0000000 | 00000 | 0000000 | 0000 |
3 | 0.15" | Seamless | 0000000 | 000000 | 0000000 | 0000 |
6 | 0.15" | Seamless | 0000000 | 000000 | 0000000 | 0000 |
2 Pipe Size | ||||||
1 | 0.156" | Seamless | 0000000 | 00000 | 0000000 | 0000 |
3 | 0.156" | Seamless | 0000000 | 000000 | 0000000 | 0000 |
6 | 0.156" | Seamless | 0000000 | 000000 | 0000000 | 0000 |