The meaning of the Acronym S/A is...

S/A is

• Subassembly
• Spacecraft Adapter
• Site Activation
• Scheduled/Actual
• Safe and Arm

More Meanings For S/A:

• Sensor/Actuator
• Subassembly
• Spacecraft Adapter
• Site Activation
• Scheduled/Actual
• Safe and Arm

S/A is also in:

• Electronics
• NASA