Just for knowledge ; this was the answer from Hasselblad :
Beatrice.Dobirta (Hasselblad)
May 7, 2020, 12:55:29 PM GMT+2
Dear Sergio Caetano,
Thank you for contacting Hasselblad Customer Support.
Unfortunately, we are not able to replace this part due to the lack of spare parts, but we suggest you contact one of our partners in Germany, Ulf Kuehn, who is specialized in Hasselblad legacy lenses and cameras. Matbe he has a solution.
Hasselblad Vertriebsgesellschaft mbH
An der Strusbek 32
22926 Ahrensburg, Deutschland/Germany
+49 4102 491 36
ulf.kuehn@hasselblad.com
We hope this is of help to you.
Best regards,
Hasselblad Customer Support
Hasselblad.com