Joined: Feb 2012
Posts: 19,349
Likes: 5,466
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
CACycling has the normal specs right. But as with all bikes you confirm as you install.
You can try another bike's BB. It will tell you whether the shell is the same threading as the BB you're trying as well, if able to install, as whether the length is right. If the spindle length is not correct this data point might let you deduce the best length. Andy.