I was researching the Vivitar and ran across one instance that a Vivitar 383 was used on a Canon DSLR camera and the camera suffered a burned flash trigger circuit.

I remember reading that older designed flash units should not be used on Digital SLR cameras, because some flash units have a high current across the trigger circuit which can burn the contacts in newer camera designs.

I then tried to find more about the Vivitar and could not find anything about the trigger current in the 383.
I could not find anything that said that it worked safely in any particular Nikon camera.
It only says that the 383 can be purchased with a Nikon flash mount.
No mention of what Nikon camera models.

Something to think about.