AK20 means 80% nitric acid + 20% N2O4 AK = Azotna Kislota = Nitric Acid in NASA




Similar to AK20

A&I - Assembly and Installation
A&L - Approach and Landing
A&P - Attitude and Pointing
A&PS - Administration and Program Support MSFC Directorate
A&R - Automation and Robotics
A&RC - Application and Resource Control
A&TA - Assembly and Test Area

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