Not Standard
Nope. You'll have to use a Novak, MMC adjustable, or one of the Heinie's cut to fit the Novak dovetail. To solve your loose sight, use a bit of blue locktite after cleaning off all oil & residue. You can also use a prick punch to kick up a burr or 2 in the bottom of the dovetail.
Sights should always be measured individually before cutting & the dovetail cut to fit. For a replacement sight, it would usually be preferable to do the fitting on the sight (cheaper part) & touch up the finish.
The problem is not the sight. Springfield was just a little too generous with the cut when they milled the slide. You could take it up with them & they might replace the sight with one hand selected for tighter fit or replace your slide with one that hasn't got that problem. Call them up. I have always had outstanding service from them.