Parker Fluid Connector Group
424 Series Phosphate Ester 1 Braid Hydraulic Hose

Key Features

  • Up to 1000 psi
  • Dimensionally conforms to SAE 100R1 Type AT specification
  • Uses Parkrimp 43 Series fittings, providing the widest selection of end configurations available anywhere

Parker's 424 phosphate-ester compatible hose is for low pressure applications up to 1000psi. Dimensionally conforms to SAE 100R1 Type AT specification. Uses Parkrimp 43 Series fittings, providing the widest selection of end configurations available.

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If getting aircraft into the air is your job, Parker’s family of phosphate-ester compatible hoses is the choice for you. Our hose selection offers the industry’s largest selection of low-, medium- and high-pressure hoses specifically designed to resist aggressive airline hydraulic fluids. Parker’s phosphate-ester hose line, together with the proper EPDM O-ring face seal and 37° Flare fittings and pipe adapters, means your leak-free assemblies will be the last thing you’ll need to worry about.


  • Industrial
  • Ground Support Equipment

MediaPetroleum base hydraulic fluids and lubricating oils
Hose I.D. Minimum(inch)1
Hose I.D. Minimum(mm)25
Maximum Working Pressure (psi)Up to 1000
Hose I.D. Maximum(inch)2
Hose I.D. Maximum(mm)51
Maximum Working Pressure (Mpa)Up to 6,9
Material - Hose Inner TubeEPDM Rubber
Material - Hose reinforcementOne braid steel wire
Material - CoverEPDM rubber, green
Minimum Bend Radius (inch)Meets SAE requirements
Minimum Bend Radius (mm)Meets SAE requirements
Working Temperature (F) Oil Minimum-40
Working Temperature (F) Oil Maximum+176
Working Temperature (C) Oil Minimum-40
Working Temperature (C) Oil Maximum+80
Compatible Fittings43 series