"The Pentagon Wars" by Col. James F Burton. Burton was part of the 1980s "Fighter Mafia" who got the F-16 built, against Pentagon tendencies for every new plane to be twice the weight and twice the cost of the last one. (The F-35 continues the tradition.)
John Boyd was part of those battles, recounted in Comer's excellent biography of him, titled "Boyd: The Fighter Pilot Who Changed the Art of War."
They were the ones who publicized the $400 hammer and $600 toilet seat.
While I like those stories and many pointed out serious problems in government procurement, some also fail to tell the whole story because the headline is what someone wants since it causes outrage.
We used bolts that cost a lot of money and looked the same as a 10 cent one from a hardware store, but ours were designed to perform to an exact spec, traceable to the ore, and tested to ensure they meet specs. You don't want that bolt to fail to performa at a critical moment when you are above, on, or below the ocean. We had bronze tools that cost a lot but looked like ordinary tools because sparks around oxygen tanks can cause issues. My point: There is a lot of wastefull spending and overpriced stuff in government contracting, but sometimes there is more to the story than simply "Military spends $x00 for something that is $10 at Walmart..."
One big problem is how the government budgets. You generally have to spend all you money on an annual basis, and if you give money back that you saved, you risked getting less next year because "you didn't need as much as you said last year..." So, come Q4, you go on a spending spree to spend whatever is left; trying to spend more is better than trying to spend less.