When Northrup Grumman shut down its facility in Bethpage NY, it had already moved a great deal of its property to the Melbourne facility. It started the move there in the 1990’s. I was there, as part of the government crew to oversee that project.
Northrup Grumman USED to be the company that owned the Bethpage “iron Works” of WW2 fame. That was the company that built the f-14, the a-6, the ea-6, the e-2c, the c-2a.
The Bethpage facility is still open.