| Abbreviation | Definition |
|---|---|
| NCR | No Calibration Required |
| NCR | Non-conformance change Request |
| NCR | Nonconformance/Failure Report |
| NCS | Near Infrared Camera & Multi-Object Spectrometer (NICMOS) Cooling System |
| NCS | NICMOS (Near Infrared Camera & Multi-Object Spectrometer) Cooling System |
| NCS | Nutation Control System |
| NCSFI | NASA College Scholarship Fund, Inc. |
| ND | NASA Document |
| Nd | Neodymium |
| ND | Network Director |
| NDAS | NASA Data Acquisition Software |
| NDAS | NASA Data Acquisition System |
| NDI | Nondestructive Inspection |
| NDL | No Down Link |
| NDPF | NASA Data Processing Facility |
| NDRC | NASA Direct Readout Conference |
| NDS | NASA Docking System |
| NDT | Non-Destructive Test |
| NDTF | Nondestructive Test Facility |
| NDTF | Non-Destructive Test Facility |