This standard covers the material requirements of fuel filler and fuel filler vent hoses (coupled or uncoupled), for use with diesel fuel in automotive fuel systems.

Note: Hoses with Butadiene/Acrylonitrile Copolymer (NBR) lining are not to be used for diesel applications containing biodiesel.

All hoses shall be considered conductive, and must meet the conductivity requirements of this specification, unless otherwise noted on the part drawing. For use in non-conductive environments, all layers of the hose must be non-conductive. MATSPC approval entries for non-conductive hoses must note the non-conductivity of the hose in the approval entry.

The material content of the hose and stiffness of the hose are defined by the Construction and Reinforcement designations for the hose. The Construction and Reinforcement designations for the hose together define the "Type" for the hose. Hoses are either suitable for applications subjected to maximum continuous operation temperatures of +100°C with intermittent operation at temperatures up to +125°C maximum or for applications subjected to maximum continuous operation temperatures of +125°C with intermittent operation at temperatures up to +150°C, dependent on the "Temperature Rating" of the hose.