Bureau of Ships Publications - Obsolete - Navy
Kekaha, Kauai, HI - Location identifier - FAA (FAAL)
Namibian Sign Language - Language code (ETLW)
Narrowband Search (MCD)
Narrowband Socket (SAUS)
Narrowband Sockets Specification (GART)
Narrow Beam Sounder (SAUS)
National Australia Bank. Monthly Summary - A publication (ADA)
National Bakery School - British (BI)
National Battlefield Site (BARN)
National Bibliographic Service - British Library (IID)
National Biological Service
National Biological Survey - Department of the Interior
National Bird-Feeding Society (EA)
National Blood Service (WDAA)
National Board for Nursing, midwifery and health visiting (SAUS)
National Board of Survey (GIS)
National Bookkeepers' Society (EA)
National Book Sale - British
National Bridal Service (EA)
National Broadcasting Service - Trinidad and Tobago (EY)
National Broadcasting Service - New Zealand
National Broadcasting System
National Brotherhood of Skiers (EA)
National Bureau of Standards - Department of Commerce - Later, NIST
National Bureau of Standards, Gaithersburg, MD - OCLC symbol (OCLC)
National Business Systems, Inc. - Toronto Stock Exchange symbol
National Button Society (EA)
Natural Black Slate (MSA)
Navigational Bombing System - British military (DMA)
Navy Broadcasting Service (ACAE)
N-Bromosuccinimide - Organic chemistry
Needs-Based Staffing (ADA)
Neighborhood Bible Studies (EA)
Netherland Benevolent Society of New York - Later, Netherlands-America CommunityAssociation (EA)
Neurobehavioral Scale
Neutral Buoyancy Simulator - Navy (MCD)
Nevoid Basal Cell Carcinoma Syndrome - Oncology (DMAA)
New British Standard - Imperial wire gauge
New Brunswick Scientific Co., Inc.
Newcastle Business School - British (ODBW)
New South Capital Trust I - AMEX symbol (NASQ)
Nickel-Bonded Steel (SAUS)
Night Bombardment - Short Distance - Air Force
Nijmegen Breakage Syndrome - Medicine (DMAA)
Nile Blue Sulfate (SAUS)
Nimbus Aviation - British - ICAO designator (FAAC)
Nippon Broadcasting System - Japan telecommunications
No Bacteria Seen - Clinical microbiology
Nonbaseline Software Library (MCD)
Nordiska Byggforskningsorgans Samarbetsgrupp - Nordic Building Research Cooperation Group - Iceland (EAIO)
Normal Blood Serum (MAE)
Normal Bowel Sounds - Gastroenterology (DAVI)
Normal Brain Stem - Medicine (EDAA)
Normal Breath Sounds (SAUS)
Normal Burm Serum (SAUS)
Normal Burro Serum - Biochemistry (DAVI)
Normandy Base Section - World War II
Norman's Boat Shop - NCIC boat manufacturer code (NCIC)
Norman's Boat Shop, Effingham, SC - Manufacturer code for watercraft hull identification number (USCG)
Nothing Before Something - Library cataloguing (DGA)
NSFNET- National Science Foundation Network Backbone Service
Nuclear Backscattering Spectroscopy (EDCT)
Nucleotide Binding Site - Genetics
Numeric Backspace (SAUS)
Numeric Backspace Character - Computer science
Numismatic Bibliomania Society (EA)
Nystagmus Blockage Syndrome - Medicine (EDAA)
Saint John Regional Library, New Brunswick - Library symbol - National Library of Canada (NLC)
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