SAE J 1949:2015-11-24

This SAE Standard specifies the dimensional requirements for the assembly of high-pressure pipe connections for compression-ignition (diesel) engine fuel injection equipment.

It applies to 60 deg female cones with external threaded connectors types 1 and 2, and to the internal threaded tube nuts and male cone type end assembly of high- pressure pipe connections for tubes with diameters up to 12 mm inclusive.