See Also: Nuclear weapons and the United States
Note: US nuclear weapons of all types (bombs, warheads, shells, and others) are numbered in the same sequence starting with the Mark 1 and ( As Of March 2006 ) ending with the W-91 missile warhead (which was cancelled prior to introduction into service). All designs which were formally intended to be weapons at some point received a number designation. Pure test units which were experiments (and not intended to be weapons) are not numbered in this sequence.
In some cases, such as B53 Nuclear Bomb and W-53 Warhead , and the W54 and Davy Crockett Mk-54, the same core nuclear system was used in multiple applications. This is indicated by the same sequence number for all versions of that nuclear weapon system.
In other cases, variants are assigned their own number, such as the B61 Nuclear Bomb which was the parent design for the W80 , W81 , and W84 .
This list includes weapons which were developed to the point of being assigned a model number (and in many cases, prototypes were test fired), but which were then cancelled prior to introduction into military service. Those models as listed as cancelled, along with the year or date of cancellation of their program.
- Bombs — designated with Mark ("Mk") numbers until 1968, and with "B" numbers after that. "Test Experimental" bombs designated with "TX".
- --- Mark 1 – " Little Boy " gun weapon (used against Hiroshima). (1945-1950)
- --- Mark 2 – "Thin Man" plutonium gun weapon (cancelled July 1944).
- --- Mark 3 – " Fat Man " implosion weapon (used against Nagasaki). (1945-1950)
- --- Mark 4 – Post-war "Fat Man" redesign. First assembly-line nuclear bomb. (1949-1953)
- --- Mark 5 – Significantly smaller high efficiency nuclear bomb. (1952-1963)
- --- Mark 6 – Improved version of Mk-4. (1951-1962)
- --- Mark 7 – Multi-purpose tactical bomb. (1952-1967)
- --- Mark 8 – Gun-assembly, HEU weapon designed for penetrating hardened targets. (1951-1957)
- --- Mark 9 – Tactical HEU gun weapon made from recycled W9 warheads. -->
- --- Mark 10 – Improved version of Mk-8 (cancelled May 1952).
- --- Mark 11 – Re-designed replacement for Mk-8.
- --- Mark 12 – Light-weight bomb to be carried by fighter planes.
- --- Mark 13 – Improved version of Mk-6 (cancelled August 1954).
- --- TX/ Mark 14 – First deployable solid-fuel thermonuclear bomb ( Castle Union device). Only 5 produced.
- --- Mark 15 – First "lightweight" thermonuclear weapon.
- --- TX/ Mark 16 – First weaponized thermonuclear weapon ( Ivy Mike device). Only cryogenic weapon ever deployed. Only 5 produced.
- --- Mark 17 – High-yield thermonuclear. Heaviest U.S. weapon, second highest yield of any U.S. weapon. Very similar to Mk-24.
- --- Mark 18 – Very high yield fission weapon ( Ivy King device).
- --- Mark 20 – Improved Mark 13 (cancelled 1954)
- --- Mark 21 – Re-designed device variant of Castle Bravo test
- --- Mark 22 – Failed thermonuclear design ( Castle Koon device, cancelled April 1954).
- --- Mark 24 – High-yield thermonuclear, very similar to Mk-17 but had a different secondary.
- --- Mark 26 – Similar design to Mk 21 (cancelled 1956).
- --- Mark 27 – Navy nuclear bomb (1958-1965)
- --- B28 Nuclear Bomb (Mark 28) (1958-1991)
- --- B39 Nuclear Bomb (Mark 39) (1957-1966)
- --- B41 Nuclear Bomb (Mark 41) (1960-1976)
- --- B43 Nuclear Bomb (Mark 43) (1961-1991)
- --- B46 Nuclear Bomb or (Mark 46); experimental, design evolved into B53 Nuclear Bomb and W-53 Warhead (cancelled 1958)
- --- B53 Nuclear Bomb (1962-1997; still in enduring stockpile)
- --- B57 Nuclear Bomb (1963-1993)
- --- B61 Nuclear Bomb (1966-current service)
- --- B77 Nuclear Bomb (cancelled 1977)
- --- B83 Nuclear Bomb (1983-current service)
- --- B90 Nuclear Bomb (cancelled 1991)
- Nuclear Artillery shells
- --- 280mm:
-- W9 (1952-1957)
-- W19 (1953-1956)
- --- 8-inch (203mm)
-- W33 (1956-1980s)
-- W75 (cancelled 1973)
-- W79 (1981-1992)
- --- 155mm
-- W48 (1963-1992)
-- W74 (cancelled 1973)
-- W82 (cancelled 1983 (W-82-0 Enhanced Radiation) and 1990 (W-82-1 fission only))
- Missile warheads
- --- W4 for SM-62 Snark Missile (cancelled 1951)
- --- W5 for MGM-1 Matador (1954-1963)
- --- W7 for MGR-1 Honest John (1954-1960), Corporal SRBM (1955-1964), Nike Hercules SAM (1958-1960s)
- --- W8 for SSM-N-8 Regulus (cancelled 1955)
- --- W12 for [[RIM-8 Talos missile (cancelled 1955)
- --- W13 for SM-62 Snark Missile and Redstone MRBM (cancelled 1954)
- --- W15 for missiles (cancelled 1957)
- --- W21 for B-58 bomber, SM-64 Navaho missile (cancelled date unknown)
- --- W25 for MB-1 "Ding Dong", later AIR-2 Genie (1957-1984)
- --- W27 for SSM-N-8 Regulus missile (1958-1965)
- --- W28 for AGM-28 Hound Dog Missile , MGM-13 Mace missile (1958-1976)
- --- W29 for (cancelled 1955)
- --- W30 for TADM , RIM-8 Talos missile (1959-1979)
- --- W31 for Honest John (1961-1985), Nike Hercules (1960s-1988)
- --- W34 for Mk101 Lulu nuclear depth charge, Mk44 ASTOR Torpedo , Mk105 bomb (1958-1976)
- --- W35 for Atlas ICBM , Titan I ICBM , Thor IRBM , PGM-19 Jupiter (cancelled 1958)
- --- W37 (cancelled 1956)
- --- W38 for Atlas ICBM and Titan I ICBM (1961-1965)
- --- W39 for Redstone MRBM (1958-1964)
- --- W40 for MGM-18 Lacrosse SRBM (1959-1964)
- --- W41 for (cancelled 1957)
- --- W42 for Air to Air and Surface to Air missiles (cancelled 1961)
- --- W44 for ASROC (1961-1989)
- --- W45 for Little John rocket, RIM-2 Terrier and AGM-12 Bullpup missiles, MADM (1961-1969 (some 1988))
- --- W46 for Redstone, Snark, B-58 (cancelled 1958)
- --- W47 for Polaris SLBM (1960-1974)
- --- W49 for PGM-19 Jupiter (1959-1963) and Thor IRBM (1959-1963)
- --- W50 for MGM-31 Pershing (1960-1990)
- --- W51 for various (program converted to W54 in 1959)
- --- W52 for MGM-29 Sergeant (1962-1977)
- --- W53 for LGM-25 Titan II (1962-1987)
- --- W54 for Davy Crockett Recoilless Rifle and AIM-26 Falcon AAM (1961-1972)
- --- W55 for Subroc (1965-1989)
- --- W56 for Minuteman I And II ICBM (1963-1993)
- --- W58 for Polaris A-3 SLBM (1964-1982)
- --- W59 for Minuteman I ICBM and Skybolt missile (1962-1969)
- --- W60 for Typhon SAM (cancelled 1963)
- --- W62 for Minuteman III ICBM , (1970-current service)
- --- W63 for Lance SRBM (cancelled 1966)
- --- W64 for Lance SRBM (cancelled 1964)
- --- W65 for Sprint ABM (cancelled 1968)
- --- W66 for Sprint ABM (1970-1975)
- --- W67 for Poseidon SLBM and Minuteman III ICBM (cancelled 1967)
- --- W68 for Poseidon SLBM (1970-1991)
- --- W69 for AGM-69 SRAM (1972-1990)
- --- W70 for Lance SRBM (1973-1992)
- --- W71 for LIM-49A Spartan ABM (1974-1975; dismantled 1992)
- --- W72 for AGM-62 Walleye (1970-1979)
- --- W73 for Condor missile (cancelled 1970)
- --- W76 for Trident I SLBM (1978-current service)
- --- W78 for LGM-30 Minuteman III (1979-current service)
- --- W80 for AGM-86 ALCM, AGM-129 ACM and BGM-109 Tomahawk (1981-current service)
- --- W81 for Standard Missile , based on B61 (cancelled 1986)
- --- W84 for BGM-109G Gryphon GLCM (1983-1991)
- --- W85 for Pershing II IRBM (1983-1991)
- --- W86 for Pershing II IRBM Earth penetrating warhead option (cancelled 1980)
- --- W87 for Peacekeeper ICBM (1986-current service)
-- W87-1 for MGM-134 Midgetman ICBM (cancelled 1992)
- --- W88 for Trident II SLBM (1988-current service)
- --- W89 for AGM-131 SRAM II (cancelled 1991)
- --- W91 for SRAM-T (cancelled 1991)
A number of American weapons designs shared common components between several designs. These include publically identified models listed below.
See Also: Russia and weapons of mass destruction
Russia possesses around 16,000 nuclear weapons in its stockpile, rivaled only by the United States for the size of its arsenal.
- ---Unknown model 3 ICBM
- ---Unknown model 3 ICBM
- ---Unknown model 5-6 ICBM
- ---Unknown model warheads for R-9 / SS-8 Sasan ICBM
See Also: Nuclear weapons and the United Kingdom
See Also: France and weapons of mass destruction
France is said to have an arsenal of 350 nuclear weapons stockpiled as of 2002.
See Also: China and weapons of mass destruction
China is believed to posess around 400 nuclear weapons, but has released very little information about the contents of its arsenal.
See Also: India and weapons of mass destruction
India is said to possess between 60-120 nuclear weapons, although not many are thought to be ready for use. The specifications of its weapons are not public.
See Also: Iran and weapons of mass destruction
Persistent rumors throughout the 1990s that Iran had obtained ex-Soviet nuclear weapons have never been confirmed or conclusively refuted.
Iran's is actively seeking nuclear capabilties, although they claim it is not for military use.
Many experts have concluded that Iran's contemporary late 1990s and 2000 formerly covert Uranium enrichment program was part of a secret nuclear weapons program. Iran disputes this conclusion. As of April 2006, the International Atomic Energy Agency and United Nations Security Council are involved in addressing this question. Also unconfirmed reports from April 12, 2006 Irani President, Mahmoud Ahmadinejad, announced to the World that Iran has enriched Uranium. Also as of April 13, 2006 Iran now demands to be seen as a Nuclear Power.
See Also: Israel and weapons of mass destruction
Israel is widely believed to posess a substantial arsenal of nuclear weapons and missiles, estimated at 75-130 warheads, but refuses to officially confirm or deny whether it has a nuclear weapon program, leaving the details of any such weapons unclear.
Unconfirmed rumors have hinted at tactical nuclear artillery shells, light fission bombs and missile warheads, and perhaps thermonuclear missile warheads.
See Also: Pakistan and weapons of mass destruction
Pakistan is believed to possess around 40 HEU based nuclear weapons, however, the specifications of these are not available.
See Also: North Korea and weapons of mass destruction
North Korea claims to posess nuclear weapons, however, the specifications of its systems are not public.
See Also: South Africa and weapons of mass destruction
South Africa built six or seven gun-type weapons. All constructed weapons were verified by IAEA and other international observers to have been dismantled, along with the complete weapons program, and their Highly Enriched Uranium was reprocessed back into low enriched form unsuitable for weapons.
- CNS Resources on South Africa's Nuclear Weapons Program indicates that "most international experts conclude that South Africa has completed its nuclear disarmament. South Africa is the first and to date only country to build nuclear weapons and then entirely dismantle its nuclear weapons program."
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