1/2" NPT Thread Specifications
Complete dimensions for 1/2" NPT pipe thread. TPI: 14, Pitch: 0.07143" (1.814 mm).
Thread Dimensions
| Designation | 1/2" NPT |
| Nominal Pipe Size | 1/2" |
| TPI | 14 |
| Pitch | 0.07143" (1.814 mm) |
| Outside Diameter | 0.84" (21.34 mm) |
| Pitch Diameter | 0.7936" (20.16 mm) |
| Minor Diameter | 0.7524" (19.11 mm) |
| Taper Angle | 1.7899° (1:16 taper ratio) |
| Thread Depth | 0.04949" (1.257 mm) |
Tap Drill Size
Tap drill: 0.7524" (19.11 mm)
Common Applications
- Plumbing connections
- Gas piping
- Hydraulic fittings
- Pneumatic connections