Aeronautical Systems Center 
Accredited Standards Committee 
Ambulatory Surgical Centers 
Additional Sense Code 
Army Signal Command 
Army Sustainment Command 
Anti Stall Control 
Advanced Simulation and Computing 
Ambulatory Surgical Center 
AUTODIN Switching Center 
Active Stability Control 
Air Systems Command 
American Satellite Company 
American Systems Corporation 
automatic sensitivity control 
Accredited Standard Committee 
ADVANCED SCIENTIFIC COMPUTER 
Advanced Simulation Center 
Aeronautical System Center 
Aeronautical Systems Command 
aircraft system controller 
Ambulatory Surgery Center 
American Society for Cybernetics 
Area Source Category 
armored scout car 
Ascent 
Authorized Support Center 
Automatic Slope Control 
Automatic Switching Center 
AXAF Science Center