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Spare Part Number
in NASA
Software Project Notebook
in NASA
Shuttle Project Notice KSC
in NASA
Standard Precision Navigator
in NASA
131516131517131519131518
Similar to SPN
A/E - Architectural and Engineering
A/E - Activity Elements
A/F - Air-to-Fuel Ratio
A/FM - Air/Firing Mechanism
A/G - Air to Ground
A/L - AutoLand
A/L - AirLock
View all in NASA