Weapons of Mass Destruction (WMD)


US Nuclear Weapons

Historical Nuclear Weapons
Historical Nuclear Weapons - Size Comparison

Introduction
Nuclear Testing
Stockpile Numbers
Stockpile Stewardship




The enduring nuclear weapon stockpile contains twelve systems within eight weapon classes. The W84, which is in the inactive stockpile (IS), is also listed. It's carrier, the ground-launched cruise missile, was eliminated by the Intermediate-Range Nuclear Forces Treaty of 1988. The 2001 Nuclear Posture Review indicated that the inactive stockpile will consist of warhead types in the active stockpile plus the W84 and B83 Mod 0, which have no active stockpile counterparts.

In November 2001 President Bush announced his intention to reduce the United States' operationally deployed strategic nuclear warheads by some two-thirds -- to between 1,700 and 2,200 weapons. As of September 2013, the U.S. stockpile of nuclear warheads consisted of 4,804 warheads [several thousand additional nuclear warheads were retired and awaiting dismantlement.]. As of September 2014, the U.S. stockpile of nuclear warheads consisted of 4,717 warheads. Approximately 2,500 additional nuclear warheads are currently retired and awaiting dismantlement. From fiscal years 1994 through 2014, the United States dismantled 10,251 nuclear warheads. Since September 30, 2013, the United States has dismantled 299 nuclear warheads. This number represented an 85 percent reduction in the stockpile from its maximum (31,255) at the end of fiscal year 1967, and a 78 percent reduction from its level (22,217) when the Berlin Wall fell in late 1989. The size of the US nuclear stockpile as of September 30, 2015 was 4,571 weapons -- and 109 US nuclear weapons were dismantled in FY 2015.





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WeaponDescription Yield [kt] Stockpile Delivery System Labs Primary Use Service Date
Entered
Service
B61-3/4/10 Non-Strategic Bomb 0.3 to 350 1,290 F-15
F-16
F-18
NATO Tornado
LANL +
Sandia
Air to
Surface
Air Force,
NATO
B61-3: 10/79
B61-4: 8/79
B61-10: 8/90
B61-7/11 Strategic Bomb 10 to 350 525 B-52
B-2
LANL +
Sandia
Air to
Surface
Air Force B61-7: 9/85
B61-11: 11/97
W76 SLBM Warhead 100 3,200 Trident I (C4)
Trident II (D5)
LANL +
Sandia
Underwater to
Surface
Navy 11/78
W78ICBM Warhead 335 920 Minuteman III ICBMLANL +
Sandia
Surface to
Surface
Air Force 9/79
W80-0/1 TLAM-N Warhead


ALCM / ACM Warhead
5 and 150 320


1,800
SSN Submarine


B-52
LANL +
Sandia
Underwater to
Surface

Air to
Surface
Navy


Air Force
W80-0: 3/84


W80-1: 2/82
B83 Strategic Bomb low to 1,200 620 B-52
B-2
LLNL +
Sandia
Air to
Surface
Air Force 9/83
W87 ICBM Warhead 300 550 Minuteman III ICBM
Peacekeeper ICBM
LLNL +
Sandia
Surface to
Surface
Air Force 7/86
W88 SLBM Warhead 475 400 Trident II (D5) LANL +
Sandia
Underwater to
Surface
Navy 6/89
W84GLCM Warhead 10 to 50 400 No current carrier
[removed by INF]
LLNL +
Sandia
Air Force9/83
RRW Reliable
Replacement
Warhead
??? none
RNEP Robust Nuclear
Earth Penetrator
low none



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