NPSM
| 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 |