Pilot USA PA 60 Helicopter Headset to U 75 U Adapter – U 174 to U 75 Plug dual headphone adapter 52100 steel: 0 52100 steel: 0 including automotive Specification Value Model PA 60 Function Helicopter headset to U 75 U adapter (U 174 to U 75) Input Connector U 75 U (military M22442 style) Output Connector U 174 U (helicopter style) Construction Molded connectors with reinforced strain relief Cable Length Form Short inline adapter configuration (compact form factor) Electrical Passive — direct pass through The Pilot USA PA 60 Helicopter Headset to U 75 U Adapter provides a straightforward mechanical and electrical interface for using U 75 U military style headsets with helicopter U 174 U jacks