ISO 7939:1988 Preview
Aircraft -- Non-metallic pulleys with ball bearings for control cables -- Dimensions and loads
This standard was last reviewed and confirmed in 2014. Therefore this version remains current.
Includes the requirements for these pulleys and incorporating ball bearings conforming to ISO 7938. The pulleys shall only be used within the temperature range from -54 °C to + 100 °C. Gives the description, pulley body manufacture, designation, marking, technical specification.