I have a friend who had the same problem, and now uses his ASC internals in an AW shell. He had someone else do the necessary work, which involved fitting the ASC left hand ball cup (which is a press fit) into the threaded AW shell. As far as I'm aware (and no doubt, I'll be corrected very quickly if wrong!) only the ASC's ball cup is a press fit, all others being threaded.
If you were prepared to send the shell and internals to England, Peter Read of Phoenix Hub Gear Co is a wizard with Sturmeys, and very reasonably priced. If you want to look into this, I can let you have his details.
Neil Foddering Weymouth, England.
>From: joebz@optonline.net
>To: classicrendezvous@bikelist.org
>Subject: [CR]ASC disaster- Shell needed
>Date: Sun, 08 Jan 2006 15:50:35 -0500
>
>Listmember Martin Gold and I went for a fixed wheel spin today, he on a
>newly rekitted Coppi and myself on a Pestmann, a nice early 50's bike I
>have fitted with a Sturmey-Archer ASC. The hub always had a suspect shell
>with damaged flanges. Anyway, the chain derailled (it may have a tight link
>or bent link) and jammed the rear wheel. After skidding to a stop, the
>damage was two opposing spokes torn right through the left flange. Ouch.
>Due to the sturdy forty spokes and Constrictor rim making up the rest of
>the wheel, the ride home was possible without incident.
>
>So before I launch into a machining project that will probably result in
>new flanges on the hub I thought I would ask if someone has a hub shell or
>a terminally damaged ASC hub. I need the K718z 40 hole hub shell.
>Checking the parts sheets, it doesn't look like any other Sturmey hub uses
>this shell.
>
>If anyone knows any other solutions I am open to suggestions. Cosmetic
>appearance is not that important as this bike, while sporting all early
>1950's parts, is real high on the patina scale.
>
>Joe Bender-Zanoni
>Great Notch, NJ