Space Shuttle Horizontal Situation Indicator (HSI) as removed from a high fidelity Space Shuttle simulator.
Although a critical part of countless flight simulations, the unit was no longer needed after the Space Shuttle avionics were upgraded to a “glass
cockpit” design (see NASA fact sheet pdf for more about the MEDS upgrade).
Hours meter indicates that this artifact has logged 6,385 hours of use in Space Shuttle simulators and in bench testing.
Internal components include gears, motors and electronic circuits.