This hub is in good condition, came from a parts bike that I bought about a year ago and doesn't have any issues that I could find. The axle spins smoothly, freehub works properly, etc. The bearings probably haven't seen fresh grease since the 90s so I'd recommend repacking it before putting it into service. The skewer was mismatched and not included (unless you want a Deore LX skewer from the same era, in which case I'll throw it in for free). It doesn't seem like it has a lot of miles on it - not a lot of scratches or wear at the spoke holes, decal looks good, etc.
The flanges are about 55mm in diameter and about 55mm apart.
Feel free to message me with any additional questions.