Description
NPT Female to Male Fittings
1404 NPT swivel adapters have a female swivel NPT thread and a male NPT thread on the ends. And they are used to connect hydraulic pipes and tubes. Those fittings are made of high-quality metal materials, durable and versatile. So if you have any problems with NPT hydraulic connection, please contact us!
Dimensional Drawings:

TUBE FITTING PART # | A PIPE THD NPTF | A1 SWIVEL THD HEX NPSM | C (inch) | C1 HEX (inch) | D DRILL (inch) | D DRILL (inch) | L (inch) | W (inch) |
1404-2-2 | 1/8-27 | 1/8-27 | 9/16 | 9/16 | 0.156 | 0.188 | 0.94 | 1.09 |
1404-2-4 | 1/8-27 | 1/4-18 | 11/16 | 5/8 | 0.219 | 0.188 | 1.06 | 1.24 |
1404-4-2 | 1/4-18 | 1/8-27 | 9/16 | 11/16 | 0.156 | 0.281 | 1.24 | 1.39 |
1404-4-4 | 1/4-18 | 1/4-18 | 11/16 | 11/16 | 0.219 | 0.281 | 1.25 | 1.43 |
1404-4-6 | 1/4-18 | 3/8-18 | 7/8 | 13/16 | 0.344 | 0.281 | 1.25 | 1.45 |
1404-4-8 | 1/4-18 | 1/2-14 | 1 | 15/16 | 0.469 | 0.281 | 1.44 | 1.44 |
1404-6-4 | 3/8-18 | 1/4-18 | 11/16 | 11/16 | 0.219 | 0.406 | 1.31 | 1.49 |
1404-6-6 | 3/8-18 | 3/8-18 | 7/8 | 7/8 | 0.344 | 0.406 | 1.31 | 1.51 |
1404-6-8 | 3/8-18 | 1/2-14 | 1 | 15/16 | 0.469 | 0.406 | 1.44 | 1.73 |
1404-8-6 | 1/2-14 | 3/8-18 | 7/8 | 7/8 | 0.344 | 0.531 | 1.50 | 1.70 |
1404-8-8 | 1/2-14 | 1/2-14 | 1 | 1 | 0.469 | 0.531 | 1.62 | 1.91 |
1404-8-12 | 1/2-14 | 3/4-14 | 1 1/4 | 1 1/4 | 0.641 | 0.531 | 1.69 | 2.04 |
1404-12-8 | 3/4-14 | 1/2-14 | 1 | 1 1/8 | 0.469 | 0.719 | 1.62 | 1.91 |
1404-12-12 | 3/4-14 | 3/4-14 | 1 1/4 | 1 1/4 | 0.641 | 0.719 | 1.69 | 2.04 |
1404-12-16 | 3/4-14 | 1-11 1/2 | 1 1/2 | 1 1/2 | 0.844 | 0.719 | 1.80 | 2.17 |
1404-16-12 | 1-11 1/2 | 3/4-14 | 1 1/2 | 1 3/8 | 0.641 | 0.938 | 1.94 | 2.29 |
1404-16-16 | 1-11 1/2 | 1-11 1/2 | 1 1/2 | 1 1/2 | 0.844 | 0.938 | 2.00 | 2.37 |
1404-16-20 | 1-11 1/2 | 11/4-11 1/2 | 1 7/8 | 1 3/4 | 1.141 | 0.938 | 2.00 | 2.38 |
1404-20-16 | 1 1/4-11 1/2 | 1-11 1/2 | 1 1/2 | 1 7/8 | 0.844 | 1.250 | 2.09 | 2.46 |
1404-20-20 | 1 1/4-11 1/2 | 1 1/4-11 1/2 | 1 7/8 | 1 7/8 | 1.141 | 1.250 | 2.09 | 2.47 |
1404-24-20 | 1 1/2-11 1/2 | 1 1/4-11 1/2 | 1 7/8 | 2 1/8 | 1.141 | 1.500 | 2.13 | 2.51 |
1404-24-24 | 1 1/2-11 1/2 | 1 1/2-11 1/2 | 2 1/8 | 2 1/8 | 1.359 | 1.500 | 2.19 | 2.61 |
1404-32-32 | 2-11 1/2 | 2-11 1/2 | 2 5/8 | 2 5/8 | 1.813 | 1.938 | 2.37 | 2.80 |
1404 NPT Female to Male Fittings Video
As the best Chinese hydraulic male adapters manufacturer, Topa can provide hydraulic fittings in a variety of sizes. Our products can be used in a wide range of hydraulic fluid environments and are resistant to high pressures and temperatures.
Topa has multiple CNC machines and professional staff, so we can process fittings to your exact specifications. Our staff will strictly inspect the quality of the fittings to ensure that the product meets your usage requirements.
If you want more information about npt hydraulic female to male fittings, please contact us!