I don't have 2 for comparison, or a camera to post a pic but I got an oal of 100.47mm and the flange thickness of 8.08mm. And for fun I measured it incorrectly as aliaz says he did it and got an oal of 99.67mm. The measurements were taken on an old waterpump with digital mitutoyo calipers. I don't want to say he did it wrong to make himself look right, but having worked in machine shops all my working life I know no one would have a tolerance of 2mm or .080. I would think the tolerance even in high production would be more like .25mm or .010