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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 Aluminum
Unthreaded Pipe Nipples and Pipe

- For Use With: Air, Oil, Water
- Specifications Met: ASTM B241
- Fittings: Use Schedule 40 aluminum
- Flanges: Use Class 125 aluminum
With a thicker wall than our thin-wall aluminum pipe, this pipe is also known as Schedule 40. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak. This pipe meets ASTM B241, so it meets strict manufacturing requirements to ensure performance and quality. It’s seamless, which provides a smooth interior for unrestricted flow. Made of aluminum, it’s lightweight with good corrosion resistance.
| Lg. | Wall Thick. | Construction | Each | |
1/8 Pipe Size | ||||
|---|---|---|---|---|
| 4" | 0.068" | Seamless | 5038K514 | 00000 |
| 6" | 0.068" | Seamless | 5038K516 | 0000 |
| 8" | 0.068" | Seamless | 5038K517 | 00000 |
| 10" | 0.068" | Seamless | 5038K518 | 00000 |
| 1ft. | 0.068" | Seamless | 5038K152 | 00000 |
| 1 1/2ft. | 0.068" | Seamless | 5038K519 | 00000 |
| 3ft. | 0.068" | Seamless | 5038K51 | 00000 |
| 6ft. | 0.068" | Seamless | 5038K65 | 00000 |
1/4 Pipe Size | ||||
| 1 1/2" | 0.088" | Seamless | 5038K521 | 0000 |
| 2" | 0.088" | Seamless | 5038K522 | 0000 |
| 4" | 0.088" | Seamless | 5038K524 | 0000 |
| 6" | 0.088" | Seamless | 5038K526 | 0000 |
| 1ft. | 0.088" | Seamless | 5038K162 | 00000 |
| 3ft. | 0.088" | Seamless | 5038K52 | 00000 |
| 6ft. | 0.088" | Seamless | 5038K19 | 00000 |
3/8 Pipe Size | ||||
| 1 1/2" | 0.091" | Seamless | 5038K531 | 0000 |
| 2" | 0.091" | Seamless | 5038K532 | 0000 |
| 3" | 0.091" | Seamless | 5038K533 | 0000 |
| 6" | 0.091" | Seamless | 5038K536 | 00000 |
| 8" | 0.091" | Seamless | 5038K537 | 00000 |
| 10" | 0.091" | Seamless | 5038K538 | 00000 |
| 1ft. | 0.091" | Seamless | 5038K172 | 00000 |
| 1 1/2ft. | 0.091" | Seamless | 5038K539 | 00000 |
| 3ft. | 0.091" | Seamless | 5038K53 | 00000 |
| 6ft. | 0.091" | Seamless | 5038K12 | 00000 |
1/2 Pipe Size | ||||
| 2" | 0.109" | Seamless | 5038K542 | 0000 |
| 3" | 0.109" | Seamless | 5038K543 | 0000 |
| 4" | 0.109" | Seamless | 5038K544 | 0000 |
| 5" | 0.109" | Seamless | 5038K545 | 00000 |
| 6" | 0.109" | Seamless | 5038K546 | 00000 |
| 8" | 0.109" | Seamless | 5038K547 | 00000 |
| 10" | 0.109" | Seamless | 5038K548 | 00000 |
| 1ft. | 0.109" | Seamless | 5038K182 | 00000 |
| 1 1/2ft. | 0.109" | Seamless | 5038K549 | 00000 |
| 3ft. | 0.109" | Seamless | 5038K54 | 00000 |
| 6ft. | 0.109" | Seamless | 5038K13 | 00000 |
3/4 Pipe Size | ||||
| 1 1/2" | 0.113" | Seamless | 5038K551 | 0000 |
| 3" | 0.113" | Seamless | 5038K553 | 0000 |
| 4" | 0.113" | Seamless | 5038K554 | 0000 |
| 5" | 0.113" | Seamless | 5038K555 | 00000 |
| 10" | 0.113" | Seamless | 5038K558 | 00000 |
| 1ft. | 0.113" | Seamless | 5038K222 | 00000 |
| 1 1/2ft. | 0.113" | Seamless | 5038K559 | 00000 |
| 3ft. | 0.113" | Seamless | 5038K55 | 00000 |
| 6ft. | 0.113" | Seamless | 5038K14 | 00000 |
1 Pipe Size | ||||
| 2" | 0.133" | Seamless | 5038K561 | 0000 |
| 4" | 0.133" | Seamless | 5038K563 | 00000 |
| 5" | 0.133" | Seamless | 5038K564 | 00000 |
| 6" | 0.133" | Seamless | 5038K565 | 00000 |
| 8" | 0.133" | Seamless | 5038K566 | 00000 |
| 10" | 0.133" | Seamless | 5038K567 | 00000 |
| 1ft. | 0.133" | Seamless | 5038K231 | 00000 |
| 1 1/2ft. | 0.133" | Seamless | 5038K568 | 00000 |
| 3ft. | 0.133" | Seamless | 5038K56 | 00000 |
| 6ft. | 0.133" | Seamless | 5038K21 | 00000 |
1 1/4 Pipe Size | ||||
| 2" | 0.14" | Seamless | 5038K569 | 0000 |
| 3" | 0.14" | Seamless | 5038K571 | 00000 |
| 4" | 0.14" | Seamless | 5038K572 | 00000 |
| 5" | 0.14" | Seamless | 5038K573 | 00000 |
| 6" | 0.14" | Seamless | 5038K574 | 00000 |
| 8" | 0.14" | Seamless | 5038K575 | 00000 |
| 10" | 0.14" | Seamless | 5038K576 | 00000 |
| 1ft. | 0.14" | Seamless | 5038K241 | 00000 |
| 1 1/2ft. | 0.14" | Seamless | 5038K577 | 00000 |
| 3ft. | 0.14" | Seamless | 5038K57 | 00000 |
| 6ft. | 0.14" | Seamless | 5038K22 | 000000 |
1 1/2 Pipe Size | ||||
| 2" | 0.145" | Seamless | 5038K578 | 0000 |
| 3" | 0.145" | Seamless | 5038K579 | 00000 |
| 4" | 0.145" | Seamless | 5038K581 | 00000 |
| 6" | 0.145" | Seamless | 5038K583 | 00000 |
| 8" | 0.145" | Seamless | 5038K584 | 00000 |
| 10" | 0.145" | Seamless | 5038K585 | 00000 |
| 1ft. | 0.145" | Seamless | 5038K251 | 00000 |
| 1 1/2ft. | 0.145" | Seamless | 5038K586 | 00000 |
| 3ft. | 0.145" | Seamless | 5038K58 | 00000 |
| 6ft. | 0.145" | Seamless | 5038K23 | 000000 |
2 Pipe Size | ||||
| 3" | 0.154" | Seamless | 5038K587 | 00000 |
| 4" | 0.154" | Seamless | 5038K588 | 00000 |

























