I didn't realize Boulton & Watt, a steam engine manufacturing firm founded in 1775, was a beneficiary of a war between Great Britain and Thirteen Colonies that also broke in 1775. Military-industrial complex indeed!
Yes. For example, how the improvements in metal working and metallurgy required to make effective artillery pieces made 'precision-engineered' steam engines possible. Making a gun barrel that snugly matches the calibre of its shells gave people the ability to make pistons that fit snugly in their cylinders, without leaking steam everywhere.