This texture was generated in Filter Forge, a Photoshop plugin that allows you to create your own filters.
Nurnies are the little boxes, pipes, plates and other unknown and unknowable bits on the outsides of spaceships. There are several 'spaceship hull' filters, but none did exactly what I wanted.
I also like this filter with the surface hight turned all the way down; it looks like a military base map.
space, nurnie, plate, metal, hull, pipe, dirt, techno, square