DIBBS, CAGE and WebFLIS

Here's a way to look at some Defense Department contracts for your local weapons contractor. Each Federal contractor (military or civilian) is assigned a bureaucratic number called a CAGE Code, which should be easy to find by an internet search. Armed (as it were) with a CAGE Code, visit DIBBS, a Defense Logistics Agency website, and search by Awardee CAGE to get a list of some (not necessarily all) of your company's recent DoD contracts. You can even look at the actual purchase orders.

Careful study may reveal which weapons system a contract's for. If an NSN is mentioned, that's the National Stock Number of the item supplied, and another DLA website called WebFLIS may tell you more about it.

For example, the CAGE Code for Woodstock's Rotron is 82877, and among the contract awards you'll find on DIBBS is one dated 7/2/2009 for 3 fans. WebFLIS's information for this model of fan reveals that it's a component of the F-16 fighter aircraft.
See also another useful website