Pay attention to measures and thread.
The DASH classification (eg -06) replaced the measures for the AN (Army-Navy specifications)
series. the measures
The DASH value currently in use do not indicate a specific measure but only a classification.
For example, a -06 fitting has a 9/16-18 UNF thread and can be used with a -06 hose.
The table below indicate the UNF measures compatible with the corresponding AN/Dash categories, and NPT and BSP specifications.