Sorry, was a typo, had to be 0.25". The MAN plan shows exactly 3" wide outside. This copy is a bit distorted vertically so the fuse length dimensions are not quite accurate, but the horizontal dimensions are. (Compare also #1161, the measurements are even more accurate now and match the measurements.)

Sorry again, 3.0" in the plan was a typo as well, has to be 3.25" so fuse width is standard. (Plan is corrected now.)