Aeroquip FCV0410 #4 AQP Socketless Hose 10′ Air Brake Compressor Discharge Hose. EST, MON to FRI. Brake > Electrical Connectors > Air Brake Compressor Discharge Hose Connector. Aeroquip FCV0410 #4 AQP Socketless Hose 10. Aeroquip – FCV0410 – #4 AQP Socketless Hose 10′ – Hose – AQP Socketless Hose – 4 AN – 10 ft – Rubber – Blue – Each.