| Abbreviation | Definition |
|---|---|
| NRV | National Rural Utilities Coop Finance |
| NRW | N C L Holding, A S A |
| NRX | National Rural Utilities Cooperative Finance |
| NRY | National Rural Utilities Cooperative Finance Corporation |
| NS | National Steel Corporation |
| NSC | Norfolk Southern Corporation |
| NSH | Nashua Corporation |
| NSI | National Service Industries, Inc. |
| NSK | New Skies Satellites N.V. |
| NSL | Nuveen Senior Income Fund |
| NSM | National Semiconductor Corporation |
| NSP | Northern States Power Company of Minnesota |
| NSPPA | Northern States Power Company of Minnesota Preferred A |
| NSPPB | Northern States Power Company of Minnesota Preferred B |
| NSPPD | Northern States Power Company of Minnesota Preferred D |
| NSPPE | Northern States Power Company of Minnesota Preferred E |
| NSPPG | Northern States Power Company of Minnesota Preferred G |
| NSPPT | N S P Financing I |
| NSS | N S Group, Inc. |
| NST | Nstar |