Valve, Air Vacuum Regulating AN5828-2, US Navy R88-V-85X Instruments OH-6 Cayuse Measures 2in diameter and ~5

Measures 2in diameter and ~5

the vertical flight gyro

000 ft of altitude

it is in exceptional condition for its age

See spec sheets in the photo gallery

Valve, Air Vacuum Regulating AN5828-2, US Navy R88-V-85X Instruments OH-6 Cayuse Measures 2in diameter and ~5This is a WWII era pneumatic Valve, Air Vacuum Regulating, made by Schwien, part number 2550, as used in aircraft of the US Army Air Force and US Navy. This valve was used to regulate the vacuum pressure between its source (either an externally mounted venturi tube, or an internal engine driven compressor) and the system of pneumatically powered flight instruments, such as the Gyro Horizon, Directional Gyro, and the Turn & Bank Indicators. Accuracy of