United States Nuclear Bomb Active Stockpile

This section, compiled from public sources and as accurate as those sources allow, reflects the active US stockpile only and does not include weapons that are waiting for disassembly at Pantex or are being held in reserve. The bombs are listed numerically by DOE warhead designation.

B-61, Mods 3 & 4 tactical bombs
Yield: Selectable: 100-500 kilotons
Safety: OPS, ENDS & IHE
Initial Operational Capability: 1980
Laboratory: LANL
Quantity: 600 of Mods 3, 4 and 10 combined.
Delivery Systems: US: F-111, A-4, A-6, A-7, AV-8B, F-4, F-15, F-16, FA-18
NATO: F-4, F-100, F-104 & Tornado.
B-61, Mod 7 tactical bomb
Yield: Selectable: 300 tons-340 kilotons
Safety: OPS, ENDS & IHE
Initial Operational Capability: 1985
Laboratory: LANL
Quantity: 750
Delivery Systems: US: B-1, B-52
B-61, Mod 10 tactical bomb
Yield: Selectable: 10-175 kilotons
Safety: OPS, ENDS & IHE
Initial Operational Capability: 1990
Laboratory: LANL
Quantity: 600 of Mods 3, 4 and 10 combined.
Delivery Systems: US: F-111, A-4, A-6, A-7, AV-8B, F-4, F-15, F-16, FA-18
NATO: F-4, F-100, F-104 & Tornado.
B-61, Mod 11 earth-penetrating tactical/strategic bomb
Yield: Selectable: 300 tons-340 kilotons
Safety: OPS, ENDS & IHE
Initial Operational Capability: 1997
Laboratory: LANL
Quantity: Not available
Delivery Systems: US: F-111, A-4, A-6, A-7, AV-8B, F-4, F-15, F-16, FA-18
NATO: F-4, F-100, F-104 & Tornado.
W-62 warhead for Mark-12 reentry vehicle on Minuteman-III
Yield: 170 kilotons
Safety: No safety devices other than OPS.
Initial Operational Capability: 1970
Laboratory: LLNL
Quantity: 610
Delivery Systems: US: Minuteman-III ICBM
W-76 warhead for Mark-4 reentry vehicle for Trident
Yield: 100 kilotons
Safety: OPS & ENDS
Initial Operational Capability: 1979
Laboratory: LANL
Quantity: 2,480
Delivery Systems: US: Trident-1 and Trident-2 SLBMs
W-78 warhead for Mark-12A reentry body on Minuteman-III
Yield: 335 kilotons
Safety: OPS & ENDS
Initial Operational Capability: 1980
Laboratory: LANL
Quantity: 920
Delivery Systems: US: Minuteman-III ICBM
W-80, Mod 0 warhead for sea-launched cruise missile
Yield: 5-150 kilotons
Safety: OPS, ENDS & IHE
Initial Operational Capability: 1984
Laboratory: LANL
Quantity: 350
Delivery Systems: US: Nuclear Tomahawk SLCMs. (All stored since September 1991)
W-80, Mod 1 warhead for ALCM & ACM
Yield: 5-150 kilotons
Safety: OPS, ENDS & IHE
Initial Operational Capability: 1982
Laboratory: LANL
Quantity: 1,200
Delivery Systems: US: B-1 and B-52 bombers. (Taken off alert since September 1991)
B-83 strategic bomb
Yield: Low-yield to 1.2 megatons
Safety: OPS, ENDS & IHE
Initial Operational Capability: 1983
Laboratory: LLNL
Quantity: 3,000 produced as of December 1986.
Delivery Systems: US: B-1, B-52, F-111, A-4, A-6, A-7, F-4, F-15, F-16 & F-18
NATO: F-4 & F-104
W-87, Mod 0 warhead for Mark-21 reentry vehicle (MX missile)
Yield: 330 kilotons
Safety: OPS, ENDS, IHE & FRP
Initial Operational Capability: 1986
Laboratory: LLNL
Quantity: 525
Delivery Systems: US: MX ICBM
W-88 warhead for Mark-5 reentry Vehicle on Trident-II
Yield: 475 kilotons
Safety: OPS & ENDS
Initial Operational Capability: 1990
Laboratory: LANL
Quantity: 400
Delivery Systems: US: Trident-II SLBM. (Production halted, partly because of safety problems.)

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