Cifial faucet nut for model 289.145.620.nl
Made this for a person who said they were hard if not impossible to find.
Evidently the tall stock plastic nut was no longer available from manufacturer.
The thread is not quit standard 16 tpi, length of nut will cause bind.
I used a slightly larger 1.598 mm pitch and it worked like a charm.
anyway.. if you need one here it is.
The author hasn't provided the model origin yet.