TIL that in 1985 an Army supply clerk at Fort Carson, Colorado accidentally ordered a $28,000 anchor instead of a $6 lamp due to mistyping the requisition number. Nobody in the supply chain asked why a mechanized unit needed a 10 ton anchor until it arrived.
Don't think I've ever heard of anyone actually checking supply requests from the supply clerks themselves. It's just assumed they know what they're requesting. Would, hopefully, be some checks against ordering nuclear, biological, or chemical items, buuut....