These are what's in the current American Standard Jazz:So now I want to buy some American Standards for the Squier.
http://www.bestbassgear.com/fender-custom-60s-jazz-bass-pickup-set.htm
These are what's in the current American Deluxe Jazz:
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Interestingly, I could be wrong, but I believe the N3 pickups were at first only available on the factory American Deluxe bass; only years later were they made available aftermarket. The Custom Shop 60s pickups, on the other hand, have been available aftermarket for many years, and only in the last few years were included in the factory American Standard bass.
One other point: the American Deluxe has a preamp, so if you are comparing the sound you get out of the Deluxe N3 pickups to how they might sound in your Squier, make sure that the preamp is switched off.