Pump discharge nozzle for the Zenith NDIX carburetors as used, amongst others, on various Porsche models.
This is the nozzle that actually injects the fuel, produced by the pump and its jet, into the air flow.
Please note that this is the LONG version of this nozzle which is some 23.3 mm long.
A SHORT version of 16.5 mm was also used.
These versions are NOT interchangeable.
The SHORT version can be found HERE.
Required quantity per carburetor: 2
This is Number 79 in the drawing.