B53 Nuclear Bomb

Full Specifications

The B53 Nuclear Bomb stands as one of the most formidable weapons developed during the Cold War era — built to turn hardened underground Soviet installations into dust through sheer explosive force. Manufactured by the Atomic Energy Commission and designed at Los Alamos National Laboratory (LANL), the B53 emerged in the early 1960s as a strategic deterrent and heavy‑duty “bunker buster.”

Developed between 1958 and 1961, the B53 entered production in 1962 and was deployed across U.S. strategic bomber fleets during the Cold War. The bomb’s purpose was straightforward yet terrifying: to deliver a multi‑megaton thermonuclear blast capable of collapsing deeply buried command bunkers, hardened facilities, and subterranean strategic assets.

With a gargantuan explosive yield of approximately 9 megatons, B53 was among the most powerful weapons ever in the U.S. arsenal. Weighing about 8,850 lb (≈4,010 kg) and measuring roughly 12 ft 4 in long, with a diameter of 50 inches, the bomb was built to be carried internally by large bombers such as the B-52 Stratofortress, B-47 Stratojet and Convair B-58 Hustler.

The B53 utilized a two‑stage radiation implosion design: its primary used highly enriched uranium (oralloy), while the secondary relied on lithium‑6 deuteride fusion fuel — demonstrating advanced thermonuclear technology for its time. Delivery modes supported free-fall airburst, contact burst, and a “laydown” option — using a parachute system to soften the impact before detonation, optimizing damage against hardened underground targets.

Although the B53 was officially retired in 1997, and the final units dismantled by 2011, its legacy continues as a stark symbol of Cold War-era strategic deterrence and the raw destructive potential of megaton-class nuclear weapons.

B53 Nuclear Bomb Price

As a decommissioned and dismantled nuclear weapon, the B53 is not available for sale. Therefore, no pricing exists for civilian or military procurement.

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