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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Thick-Wall Galvanized Iron and Steel
Threaded Pipe Nipples and Pipe
Made of galvanized iron or steel, this pipe has fair corrosion resistance. It has thick, Schedule 80 walls for good strength in medium-pressure applications.
Seamless pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.
Straight reducers are also known as swage nipples.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Nitrogen Gas, Oil, Steam, Water
- Specifications Met: ASTM B633, ASTM A234, MSS SP-95, ASME B1.20.1
- Fittings: Use Class 300 iron or steel
- Flanges: Use Class 300 steel
Pipe Size | |||||||
|---|---|---|---|---|---|---|---|
(A) | (B) | Lg. | Thread Type | Construction | Material | Each | |
| 1/4 | 1/8 | 2 1/4" | NPT | Seamless | Galvanized Steel | 00000000 | 000000 |
| 3/8 | 1/4 | 2 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1/2 | 1/8 | 2 3/4" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1/2 | 1/4 | 2 3/4" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1/2 | 3/8 | 2 3/4" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 3/4 | 1/4 | 3" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 3/4 | 1/2 | 3" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 | 1/8 | 3 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 | 1/4 | 3 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 | 3/8 | 3 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 | 1/2 | 3 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 | 3/4 | 3 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 1/4 | 1/2 | 4" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 1/4 | 3/4 | 4" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 1/4 | 1 | 4" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 1/2 | 1/2 | 4 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 1/2 | 3/4 | 4 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 1/2 | 1 | 4 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 1 1/2 | 1 1/4 | 4 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 2 | 1/2 | 6 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 000000 |
| 2 | 3/4 | 6 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 000000 |
| 2 | 1 | 6 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
| 2 | 1 1/4 | 6 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 000000 |
| 2 | 1 1/2 | 6 1/2" | NPT | Seamless | Galvanized Steel | 00000000 | 00000 |
Threaded Hose Fittings for Hydraulic Fluid
Fittings are threaded on both ends so you can connect them directly to a threaded hose or to pumps, cylinders, and other equipment in your hydraulic system.
Zinc-plated steel fittings are stronger and more durable than stainless steel fittings. They have fair corrosion resistance. BSPP threads have a gasket or a 60° internal flare to protect against leaks.
For technical drawings and 3-D models, click on a part number.
