Honeywell 311393 5" White Spring 4-11 PSI MP953AE

The Honeywell 311393 White Spring is a pneumatic actuator part used in control assemblies to regulate air pressure response in compatible valve systems. It is rated for a 411 PSI operating range, allowing calibrated movement of actuator mechanisms in coordinated control setups. This spring is commonly used in MP953AE series assemblies where pressure balance is required for valve positioning. Within HVAC systems, it is fitted inside pneumatic control sections to support modulation of airflow or fluid control through connected valve assemblies. The 5-inch diameter form allows stable placement within matched actuator housings, maintaining consistent response during operation.