| Acronym | Definition |
|---|
| NPSM➣National Pipe Straight Mechanical (thread standard) |
| NPSM➣National Standard Free-Fitting Straight Mechanical Pipe Thread |
| NPSM➣National Programme on Smart Materials (India) |
| NPSM➣NATO Precautionary System Manual |
| NPSM➣American National Straight Pipe Thread for Mechanical Joints |
| NPSM➣Nonparametric Statistical Method |