Network Control Center 
National Computer Center 
National Coordinating Center 
National Climatic Center 
National Classification Committee 
National Computer Conference 
Network Coordination Centre 
NASA Class Code 
Network Control Centre 
National Computing Centre 
Navy component command 
National Certified Counselor 
National Command Center 
National Computer Centre 
National Computing Center 
naval component commander 
Negotiated Contract Cost 
Network Color Code 
NICMOS Cryo-Cooler 
Nigerian Communications Commission 
Nominal Corrective Combination 
NASA Communications Control 
National Capital Commission 
National Clearing Corporation 
National Climate Center 
National Combustor Code 
National Communications Committee 
National Competition Council 
National Consultative Committee 
National Control Centre