word on the interwebs is, it's got a 1" steerer. The huffy sight doesnt say anything, except that specs may change or vary from retailer to retailer. sounds ominous. A lot of folks can look at the stem for a second and tell if it's 1" or 1 1/8", but not everyone can do that yet, so I getcha. (Very few of us can stare at the stem or anything else and tell ya what the headset cup OD is, or the crown race, but that's another pile of poop that you can save for another day, although I suspect crown race issues are in your future, being that you're switching your fork. If you're going from huffy to cheeeep, new, chinese chinese "sunlite springers, though, it'll prolly be the same one. If you're looking to put something old on there, you'll prolly need a new race).
Simple fact is, in these trying times with weird variations in products with the same name but potentially different manufacturers and specs, you gotta measure. I don't want to come off like a smart@$$, but if you're going to switch the fork, you're going to need to take a wrench to this critter anyway. It'll take way less time, effort, and guesswork if you loosen your stem and headset and just measure your steertube. Measure the length of it (the steer tube) and the length of the threaded section while you're at it, so you'll better know what replacement fork to get. I could do that a lot quicker than the time it takes to type a question online, wait for answers, read the answers, and try to see if there's any answer in the heap that's more accurate then "go measure your steertube".
(Look at me; i waste more time than anyone with these long posts... procrastinating, is all)
good luck
-rob