Aeroquip FCN0615 #6 AQP Socketless Hose Black 15′ Air Brake Compressor Discharge. EST, MON to FRI. Brake > Electrical Connectors > Air Brake Compressor Discharge Hose Connector. Aeroquip FCN0615 #6 AQP Socketless Hose Black 15. Aeroquip – FCN0615 – #6 AQP Socketless Hose Black 15′ – Hose – AQP Socketless Hose – 6 AN – 15 ft – Rubber – Black – Each.