Description
Use the table below to select the required thread combination and check the fitting dimensions. T1 and T2 identify the two female threaded ends, L1 indicates the overall length, and S1 indicates the hex size across flats.
PART NO. | THREAD | DIMENSIONS | Weight(g) | Working pressure MPa | ||
T1 | T2 | L1 | S1 | |||
7N-02 | Z1/8"X27 | Z1/8"X27 | 24 | 17 | 28 | 34.5 |
7N-02-04 | Z1/8"X27 | Z1/4"X18 | 27 | 19 | 38 | 27.5 |
7N-02-06 | Z1/8"X27 | Z3/8"X18 | 30 | 22 | 55 | 21 |
7N-04 | Z1/4"X18 | Z1/4"X18 | 29 | 19 | 33 | |
7N-04-06 | Z1/4"X18 | Z3/8"X18 | 31 | 22 | 49 | |
7N-04-08 | Z1/4"X18 | Z1/2"X14 | 35 | 30 | 129 | |
7N-06 | Z3/8"X18 | Z3/8"X18 | 29 | 22 | 37 | |
7N-06-08 | Z3/8"X18 | Z1/2"X14 | 38 | 30 | 128 | 17 |
7N-06-12 | Z3/8"X18 | Z3/4"X14 | 40 | 36 | 201 | |
7N-08 | Z1/2"X14 | Z1/2"X14 | 38 | 30 | 110 | 21 |
7N-08-12 | Z1/2"X14 | Z3/4"X14 | 43 | 36 | 197 | 17 |
7N-12 | Z3/4"X14 | Z3/4"X14 | 39 | 36 | 148 | |
7N-12-16 | Z3/4"X14 | Z1"X11.5 | 45.5 | 41 | 227 | 14 |
7N-16 | Z1"X11.5 | Z1"X11.5 | 48 | 41 | 183 | |
7N-20 | Z1.1/4"X11.5 | Z1.1/4"X11.5 | 49 | 50 | 239 | 8 |
7N-24 | Z1.1/2"X11.5 | Z1.1/2"X11.5 | 49 | 60 | 409 | 7 |
7N-32 | Z2"X11.5 | Z2"X11.5 | 50 | 70 | 422 | – |
Working pressure must be confirmed for the selected size, material, and operating conditions. The fitting rating alone does not establish the rating of the complete connection; the mating components and assembly requirements must also be considered.
7N Female NPT Fitting Video
Watch the video for a closer look at the 7N female-to-female NPT fitting, including its straight body, threaded openings, and hexagonal wrench flats. The product view gives you a clearer understanding of its shape and how the two connections are arranged.
The 7N series includes equal-size and reducing configurations for joining two male NPT connections. Before selecting a model, confirm the required female thread size at each end, then review the corresponding dimensions and applicable working pressure. Material and surface finish should also match your operating requirements.
Click to watch the product video and explore the 7N fitting in more detail. For distributor replenishment, OEM production, or recurring supply, send Topa your required part numbers and quantities by item.








