1. Scope--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 degrees female cones with external threaded connectors types 1 and 2 (see Figures 1, 2, and 3), and to the internal threaded tube nuts and male cone type end assembly (see Figure 4) of high-pressure pipe connections for tubes with diameters up to 12 mm inclusive.