| Acronym | Meaning |
![](file.png) | NRI | NonreCurring Investment |
![](file.png) | NRL | Naval Research Laboratory |
![](file.png) | NRM | Nonrecurring Maintenance |
![](file.png) | NRP | Normal Rated Power |
![](file.png) | NRS | Nonconformance Reporting System |
![](file.png) | NRT | Near Real-Time |
![](file.png) | NRTS | Not Repairable At This Station |
![](file.png) | NRZ | Non-Return-to-Zero |
![](file.png) | NRZ-L | Non-Return-to-Zero Level |
![](file.png) | NS | Nickel Steel |
![](file.png) | NSA | National Standards Association |
![](file.png) | NSD | NASA Standard Detonator |
![](file.png) | NSGT | NASA Ground Terminal |
![](file.png) | NSI-I | NASA Standard Initiator-Type I (was SMSI) |
![](file.png) | NSN | National Stock Number |
![](file.png) | NSO | NASA Support Operation |
![](file.png) | NSP | NASA SupportPlan |
![](file.png) | NSP | Network Signal Processor |
![](file.png) | NSP | Network Signal Processor |
![](file.png) | NSR | National Slow Rate |
![](file.png) | NSR | Nominal SlowRate |
![](file.png) | NSR | Normal Slow Rate (Maneuver) |
![](file.png) | NSR1 | First Coell;ptic Maneuver |
![](file.png) | NSR2 | Second Coelliptic Maneuver |
![](file.png) | NSS | Nitrogen Supply Subsystem |
![](file.png) | NSSDC | National Space Science Data Center |
![](file.png) | NSTL | National Space Technology Laboratories |
![](file.png) | NSTL | National Space Technology Laboratory (was MTF) |
![](file.png) | NSW | NSP Status Word |
![](file.png) | NT | Newton |
![](file.png) | NTIS | National Technical Information Service |
![](file.png) | NTO | NitrogenTetroxide |
![](file.png) | NTP | Network Test Panel |
![](file.png) | NTP | Normal Temperature And Pressure |
![](file.png) | NTP | Notice ToProceed |
![](file.png) | NTS | Near Term Schedule |
![](file.png) | NTS | Not To Scale |
![](file.png) | NTSO | NASA Test Support Office |
![](file.png) | NTTF | Network Test And Training Facility |
![](file.png) | NUCLEAR | ShuNuclear Shuttle |
![](file.png) | NUL | Non-GSE Utilization List |
![](file.png) | NVAFB | North Vandenberg Air Force Base |
![](file.png) | NVB | Navigational Base |
![](file.png) | NVPOWG | NASA/VAFB Payload Operations Working Group |
![](file.png) | NVR | No Voltage Release |
![](file.png) | NVR | Non-Verification Required |
![](file.png) | NVR | Nonvolatile Residue |
![](file.png) | NW | NASA Waiver |
![](file.png) | NW | Nose Wheel |
![](file.png) | NWS | National Weather Service |