Hey Lenny,
Here's the scoop from an Ex AD in the US Navy, (My nephew). They used the rattle cans from WalMart! The .96 cent ones! He said the primer gray was an exact match for the navy color.
He was in VMF-131 Wildcats and they flew FA18C's.
The color called for is Light Ghost Gray. I believe there have been many different shades of gray used by the navy since the gray over white scheme was phased out. Hope that helps you.
Don
I know it's only rock and roll, but I like it.