So, you want the actual Nikon cable, or just one that will work?
I do not have any form of Nikon-branded SCSI cable.
I do, however, have SCSI cables with the big, fat (what I think you mean by full-pitch) 50-pin connector that was borrowed from telephone equipment on one end. I have several options for the other end, from the matching big, fat 50-pin to the DB-25 that Macs used and several others.
Now, you might not want one of my cables, given what we know it costs to ship from me to you!
But, if I have something that works, you know you're welcome to it!