The U.S Navy has a huge stockpile of Mar 80 series general purpose bombs with some manufactured as far back as the Vietnam War-era. These bombs have no shelf life and when the service required them for operational use, it relies on a U.S. Army facility to inspect and renovate them.
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Photo Credit: Mr. Thomas Peske (AMC)
[thumb]http://www.army.mil/article/152654/Crane_Army_key_for_Navy_aircraft_bomb_renovation/[/thumb]