In article <31cfacf1.652942@news.pixi.com>, djn@pixi.com says...

>I currently own a Nikon F4 and during use the little rewind knob on
>the rewind lever fell off. I was wondering if I need to send the
>entire camera back to the service center to have this replaced or can
>this part be ordered directly from Nikon and replaced at a local
>repair shop or even myself.

You can call 1-800-NIKONUS for the phone-no/address of Nikon parts,
which will sell the part(s) very inexpensively, BUT it is VERY difficult
to get the right part, sometimes, from them, and your description above
is not good enough to establish exactly which part is missing, even for
those of us familiar with the camera (and Nikon seems to hire parts
people off the street, with absolutely NO experience with any Nikon
equipment......), so I would suggest working on the description
before calling. My guess is that you want the folding crank part
of the rewind knob (with the attached tiny rotating knob).
Hope This Helps