It pays contractors and subcontractors to produce parts for its systems, but has no way to know if those parts have actually been produced. Meanwhile, private equity rollups like Transdigm have merged every single-source aerospace supplier and jacked up the price of spare parts for existing military systems, pulling down 4,500%+ markups:
https://theintercept.com/2019/05/28/ro-khanna-transdigm-refund-pentagon/
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