That may be a hub from a L260P but the actual front axle looks different than the L260 illustrated parts list.
You can look through the different models (L175, L185, L200, L210, L225, L235, L245, L260, L2??, L3??) series tractors illustrated parts lists here
https://apps.kubotausa.com/illustrated-parts/ or at Messicks.
Since you are in Pa. I think there may be a Messicks close to you that you could visit to ask them.
I think the hub is from the L260 since it seems to be a 4 lug bolt hub. The axle appears to be two bars that clamp together instead of a box beam and bar sliding together as your pictures show.
I looked around at the illustrations and most of the LXXX series starting at L245 had 6 hole hubs but have the sliding axle. I didn’t write notes so may have confused some of the model numbers and what they have. I suggest you write notes on each model you look at to help narrow it down. Also note there are a lot of L models that are newer series (L2250 for example) so be careful in your search (I have thought I was looking at L225 but actually on the L2250 diagrams).
Newhall Service may be able to match the hub from some key information (bolt pattern, bearing size, …) if you call them.