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About Pipe and Fittings
Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
Standard-Wall Steel Unthreaded Pipe Nipples and Pipe

- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: See table
- Fittings: Use Schedule 40 iron and steel
- Flanges: Use Class 150 steel
Weld this unthreaded pipe to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak. Pipe is also known as Schedule 40. It has welded construction, so there is a weld bead on the inside. Use in noncorrosive environments.
| Lg. | Wall Thick. | Construction | Specifications Met | Each | |
3/4 Pipe Size | |||||
|---|---|---|---|---|---|
| 1" | 0.113" | Welded | ASTM A53, ASTM A733 | 1120T42 | 00000 |
| 1 1/2" | 0.113" | Welded | ASTM A53, ASTM A733 | 1120T43 | 0000 |
| 2" | 0.113" | Welded | ASTM A53, ASTM A733 | 1120T44 | 0000 |
| 3" | 0.113" | Welded | ASTM A53, ASTM A733 | 1120T45 | 0000 |
| 4" | 0.113" | Welded | ASTM A53, ASTM A733 | 1120T46 | 0000 |
| 6" | 0.113" | Welded | ASTM A53, ASTM A733 | 1120T47 | 00000 |
| 8" | 0.113" | Welded | ASTM A53, ASTM A733 | 1120T48 | 00000 |
| 1ft. | 0.113" | Welded | ASTM A53 | 7750K112 | 00000 |
| 3ft. | 0.113" | Welded | ASTM A53 | 7750K192 | 00000 |
| 5ft. | 0.113" | Welded | ASTM A53 | 7750K232 | 00000 |
Standard-Wall Steel Threaded Pipe Nipples and Pipe
Also known as Schedule 40, this pipe is designed for low-pressure applications. Use in noncorrosive applications.
Welded pipe has a weld bead on the inside.
NPT Threaded on One End

- For Use With: Air, Steam, Oil, Water, Natural Gas
- Specifications Met: ASTM A733, ASME B1.20.1, ASTM A53
- Fittings: See table
For Fitting | ||||||
|---|---|---|---|---|---|---|
| Lg. | Construction | Material | Class | Material | Each | |
3/4 Pipe Size | ||||||
| 1 1/2" | Welded | Steel | 125, 150 | Iron, Steel | 7753K115 | 00000 |
| 2" | Welded | Steel | 125, 150 | Iron, Steel | 7753K125 | 0000 |
| 2 1/2" | Welded | Steel | 125, 150 | Iron, Steel | 7753K247 | 0000 |
| 3" | Welded | Steel | 125, 150 | Iron, Steel | 7753K135 | 0000 |
| 3 1/2" | Welded | Steel | 125, 150 | Iron, Steel | 7753K248 | 0000 |
| 4" | Welded | Steel | 125, 150 | Iron, Steel | 7753K145 | 0000 |
| 4 1/2" | Welded | Steel | 125, 150 | Iron, Steel | 7753K249 | 0000 |
| 5" | Welded | Steel | 125, 150 | Iron, Steel | 7753K251 | 0000 |
| 5 1/2" | Welded | Steel | 125, 150 | Iron, Steel | 7753K252 | 0000 |
| 6" | Welded | Steel | 125, 150 | Iron, Steel | 7753K155 | 0000 |
| 8" | Welded | Steel | 125, 150 | Iron, Steel | 7753K253 | 0000 |
| 10" | Welded | Steel | 125, 150 | Iron, Steel | 7753K254 | 0000 |
| 12" | Welded | Steel | 125, 150 | Iron, Steel | 7753K165 | 00000 |
| 36" | Welded | Steel | 125, 150 | Iron, Steel | 7750K392 | 00000 |
| 60" | Welded | Steel | 125, 150 | Iron, Steel | 7750K432 | 00000 |

























