National Ichthyosis Foundation (EA)
National Ignition Facility - Lawrence Livermore National Laboratory - Department of Energy
National Income Forecasting (ADA)
National Innovation Fund - South Africa
National Institute for the Family (EA)
National Interfraternity Foundation (EA)
National Inventors Foundation (EA)
National Investment Fund - Poland - Finance
National Iranian Front - Political party
National Islamic Front - Sudan - Political party
National Issues Forums (EA)
Navy Industrial Fund
Negative Inspiratory Force - Medicine
Nek - Language code (ETLW)
Network Information Files - Burroughs Corp.
Network Information Frame (SAUS)
Network Interface Function (SPST)
Neutrophil Immobilizing Factor (DMAA)
Neutrophil Migration Inhibition Factor
New Israel Fund (EA)
Nickel-Iron Film
Nifedipine - Pharmacology
Noise Improvement Factor (IEEE)
Non-Industrial Facilities - Military technology (DDF)
Nonindustrial Facility - Emergency Management (EMA)
Nonintestinal Fibroblast - Medicine (DMAA)
Note-Issuance Facility - Banking
Notice of Intent to Fine (SAUS)
Not Industrially Funded - Military
Not in File
Nuclear Information File (AFM)
Nuveen Prem Insured Muni Inc. - NYSE symbol
Nuveen Premium Insured Municipal Income - NYSE symbol (SPSG)
Nitrogen-Fixing - Biology (BARN)