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Complete List of All U.S. Nuclear Weapons

Last changed 14 October 2006

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Desig-
nation
Type Width
(in.)
Length
(in.)
Weight
(lb.)
Yield(s) Fuzing Deployment
Status
Comments
Mk-IBomb281208,90015 - 16 KtAirburstUsed in combat in 1945, never stockpiled; only 5 bomb assemblies completed, all retired by Nov 1950Gun-assembly HEU bomb; "Little Boy" dropped on Hiroshima
Mk-IIBomb Theoretical design, never producedLow-efficiency plutonium implosion bomb
Mk-IIIBomb60.2512810,30018, 20-23, 37, 49 KtAirburstUsed in combat in 1945; mass production 4/47-4/49, 120 produced; all retired late 1950Plutonium implosion bomb; "Fat Man", Model 1561; Mods 0, 1, 2
Mk-4Bomb6012810,800 - 10,9001, 3.5, 8, 14, 21, 22, 31 KtAirburstEntered service 3/49; produced 3/49-5/51; 550 produced (all mods);
Retired 7/52-5/53
Implosion fission bomb; redesigned weapon based on Mk-III Mod 1; first IFI weapon; first assembly-line produced nuclear weapon; used type C and D pits, composite Pu-HEU cores; 3 mods
T-1 / TX-1Atomic Demolition MunitionAbout 8?About 150Low kilotonTime delay Entered service, withdrawn, late 1940sDeveloped at Picatinny Arsenal for the U.S. Army. The only U.S. nuclear weapon ever developed outside of the nuclear laboratory system. Gun-assembly HEU weapon.
W-4Warhead60906,500Airburst Canceled 1951Planned warhead for the Snark SSM cruise missile; Mk-4 bomb derivative
Mk-5Bomb43.75129 - 1323,025 - 3,1756, 16, 55, 60, 100, 120 KtAirburst or contactEntered operational stockpile 5/52;
last retired 1/63;
140 bombs (all mods) produced
92 lens high efficiency implosion bomb; used type D pit, composite cores; first weapon with major size/weight reduction over Fat Man; used as primary (1st stage) in the first thermonuclear devices; 4 mods; first weapon to use auto IFI
W-5Warhead39; 44762,405 - 2,650; 2,600 (XW-5-X1)same as Mk-5Airburst or surfaceStart of manufacture 4/54 (Regulus), 7/54 (Matador);
retired 7/61 - 1/63;
35 (Regulus), 65 (Matador) produced
Warhead for the Matador (MGM-1) and Regulus 1 (SSM-N-8) SSM cruise missiles; application to the Rascal air-to-surface canceled; first missile warhead; produced by modifying stockpile Mk-5 bombs
Mk-6Bomb611287,600 - 8,5008, 26, 80, 154, 160 KtAirburst or contactManufactured from 7/51 to early 1955; 1100 bombs (all mods) produced; last retired 1962Improved high-yield lightweight Mk-4; 7 mods; some Mk-4Ds were converted Mk-6 Mod 0; early mods had 32 lens implosion system, Mod 2 and later had 60 lens system
Mk-7Bomb30.51831,645 - 1,7008, 19, 22, 30, 31, 61 KtAirburst or contactManufactured 7/52 - 2/63; in service July 1952-1967; 1700 - 1800 producedMk-7 "Thor"; multipurpose light weight tactical bomb; 92 lens implosion system; 6-7 yields; 10 mods, PAL A used on late mods
W-7Warhead30 - 30.554.8 - 56900 - 1,100;
970 (W-7-X1 / X2);
983 (Betty)
90 T; 2 - 40 KtAirburst, surface, hydrostaticW-7 warhead manufacture begun 12/53;
BOAR: stockpiled 1956 - 1963, 225 produced;
Corporal: stockpiled 1955 - 1965, 300 produced;
Honest John: stockpiled 1954 - 1960, 300 produced;
ADM: stockpiled 1955-1963, 300 produced;
Betty: stockpiled 6/55 - 1960, 225 produced;
Nike Hercules: canceled 1956
Multipurpose warhead - BOAR air-surface rocket, the Corporal (M-2) and Honest John (M-3) ballistic missiles, ADM, Betty Mk 90 ASW depth bomb, Nike Hercules SAM missile warhead (W-7-X1/X2); 7 yields, 4 mods; Corporal yield 2-40 Kt (several options), ADM yield low (90 T?), Betty yield 32 Kt
Mk-8Bomb14.5116 - 132 3,230 - 3,280 25 - 30 Kt Pyrotechnic delayManufactured 11/51 - 5/53; in service 1/52 - 6/57; 40 produced (all mods)Earth penetrating weapon, gun-assembly HEU bomb, nicknamed "Elsie" (for LC - light case), 2 mods; replaced by the Mk-11
W-8WarheadCanceled May 1955Gun-assembly warhead, intended for use as a cratering warhead for the Regulus missile
W-9Artillery Shell11.02 (280 mm)54.8803; 85015 Kt Mechanical time delay airburstManufactured 4/52 - 11/53;
Retired 5/57; 80 produced
Used in T-124, the first U.S. nuclear artillery shell; gun-assembly HEU weapon, modified TX-8; replaced 1-for-1 by W-19; only 20 280mm cannons were ever made
Mk-9 / T-4Atomic Demolition Munition120 - 200Time delayStockpiled 1957;
retired 1963
The T-4 was built from recycled W-9 warheads; gun-assembly HEU weapon; replaced by W-45
Mk-10Bomb121,750; 1,500 12 - 15 KtAirburstCanceled May 1952"Airburst Elsie", a reduced size/ weight derivative of the Mk-8; superseded by the Mk-12
Mk-11Bomb141473,210 - 3,500Pyrotechnic delayManufactured 1/56 - 1957; in service 1/56 - 1960; 40 producedImproved Mk-8 gun-assembly weapon, replaced Mk-8 on 1-for-1 basis; stockpiled as the "Mk-91 penetration bomb"
Mk-12Bomb221551,100 - 1,20012, 14 KtTimer or contactManufactured 12/54 - 2/57;
Retired 7/58 - 7/62; 250 produced
High-speed fighter-bomber weapon; 92-point implosion weapon; nicknamed "Brok"; probably first weapon using beryllium tamper; 4 versions stockpiled - 2 prototypes, 2 mods
W-12Warhead22900Low KtAirburst Canceled Nov 1955Talos (Navy)/Talos-W (Army) surface-air missile warhead
MK-13Bomb611287,40032 Kt (Upshot - Knothole Harry shot)Airburst or contactCanceled Aug 1954High-yield Mk-6 follow-on, 92-point implosion system; superseded by TN Mk-15/39
W-13Warhead581006,000 - 6,500Airburst or contactCanceled Sept 1954Early warhead intended for Snark cruise missile, Redstone ICBM; superseded by TN Mk/W-15/39
TX / MK-14Bomb61.4222 - 223.528,954 - 29,851; 31,0005-7 Mt; 6.9 Mt (Castle Union shot)AirburstStockpiled 2/54 - 10/54;
5 produced
First deployed solid-fuel thermonuclear weapon; recycled into Mk-17 weapons by 9/56; used 95% enriched Li-6; 64 ft parachute
MK-15Bomb34.4 - 34.7; 35136 - 140 7,6001.69 Mt (Castle Nectar), 3.8 Mt (Redwing Cherokee) Airburst, contact (F/F or rtd), laydown Manufactured 4/55 - 2/57;
Retired 8/61 - 4/65; 1200 produced (all mods)
First "lightweight" U.S. TN bomb; used HEU secondary casing; 3 mods; 1x3 ft and 1x12 ft ribbon parachutes
W-15Warhead34.56,400 - 6,560 Canceled Feb 1957Class "C" TN missile warhead derived from MK-15, canceled in favor of very closely related W-39
TX-16Bomb61.4296.739,000 - 42,0006 - 8 MtAirburstStockpiled 1/54 - 4/54;
5 produced
First deployed thermonuclear weapon; weaponized version of Ivy Mike device; only cryogenic TN weapon ever deployed
EC-17Bomb61.4224.939,60011 Mt (Castle Romeo shot)AirburstStockpiled 4/54 - 10/54; 5 produced"Emergency Capability" weapon (deployed prototype); used natural lithium; free fall bomb
MK-17Bomb61.4296.741,400 - 42,00010 - 15 MtAirburst or contact (Mod 2 only)Manufactured 7/54 - 11/55;
Retired 11/56 - 8/57; 200 produced
Similar to MK-24, different secondary; heaviest U.S. nuclear weapon, 2nd highest yield of any U.S. weapon (along with similar Mk-24); 3 mods; Mod 2 contact fused; 1x64 ft. parachute; replaced by the Mk-36
MK-18Bomb601288,600500 Kt (Ivy King shot)Airburst or contactManufactured 3/53 - 2/55;
Retired 1/56 - 3/56; 90 produced (all mods)
Very high-yield MK-6/Mk-13 follow-on; largest pure fission bomb ever deployed; nicknamed the SOB ("Super Oralloy Bomb"); 92-point implosion system, all HEU core; 2 mods;
Retired by conversion to lower yield Mk-6 Mod 6; superseded by TN Mk-15 and Mk-28
W-19Artillery Shell11.02 (280 mm)5460015 - 20 KtMechanical time delay airburstProduction began 7/55;
Retired 1963; 80 produced
Used in T-315 atomic projectile; improved W-9; gun-assembly HEU weapon
Mk-20Bomb601286,400 Canceled Aug 1954Improved high-yield MK-13; superseded by TN MK-15
Mk-21Bomb56.2; 58.5 149 - 150 15,000 - 17,7004 - 5 MtAirburst, contact, laydownManufactured 12/55 - 7/56;
Retired 6/57 - 1//57; 275 produced (all mods)
Redesigned Shrimp TN device with 95% enriched Li-6 fuel; 3 mods, all "dirty"; "clean" version tested, never deployed; Mod 1 contact fused; Mod 2 also had w/boosted primary;
Retired by conversion to Mk-36-Y1 Mod 1
W-21Warhead52; 14515,000 - 16,000 Canceled For B-58, SM-64A 56 Navaho
Mk-22Bomb5118,0001 MtCanceled April 1954UCRL design based on the Morgenstern/Ramrod devices; canceled following Morgenstern fizzle (Castle Koon)
W-23Artillery Shell16641,500; 1,90015 - 20 Kt Mechanical time delay airburstProduction began 10/56;
Retired 10/62;
50 produced
US Navy "Katie" shell; W-19 (11 inch shell) internal components adapted to 16 inch shell body
EC 24Bomb6122539,60013.5 Mt (Castle Yankee shot)AirburstStockpiled 4/54 - 10/54;
10 produced
"Emergency Capability" weapon (deployed prototype); used enriched Li-6; free fall bomb
Mk-24Bomb61.429641,400 - 42,000 10 - 15 Mt AirburstManufactured 7/54 - 11/55;
Retired 9/56 - 10/56;
105 produced
Similar to MK-17, different secondary; heaviest U.S. nuclear weapon, 2nd highest yield of any U.S. weapon (along with similar Mk-17); 2 mods (Mod 2 with contact burst canceled); 1x64 ft parachute; replaced by the Mk-36
W-25Warhead17.35 - 17.425.7 - 26.6218 - 2211.7 KtTime delayManufactured 5/57 - 5/60;
Mod 0 retired 8/61 - 1965, all retired by 12/84;
3150 produced (all mods)
MB-1 Genie AAM warhead; unboosted composite implosion warhead; first "sealed pit" weapon; 2 mods, Mod 1 had environmental sensing device safeties
Mk-26Bomb56.215015,000 - 17,700Canceled 1956Mk-21 sibling design
Mk-27Bomb30.2125 - 1423,150 - 3,300Airburst or contactManufactured 11/58 - 6/59;
Retired 11/62 - 7/65; 700 (all mods) produced
Navy TN bomb; This UCRL design was a competitor with the LASL Mk-28 to satisfy the Class "D" light weight TN bomb requirement; 3 mods
W-27Warhead30.25 - 31752,8002 MtAirburst or contactManufactured 9/58 - 6/59;
retired 8/62 - 7/65;
20 produced
Regulus I (SSM-N-8) SSM cruise missile warhead; considered for several other systems all of which were were canceled: the F-101 and B-58 bomb pods, and the Rascal, Regulus II, and Matador cruise missiles
Mk-28Bomb20; 2296 - 1701,700 - 2,320Y1: 1.1 Mt,
Y2: 350 Kt,
Y3: 70 Kt,
Y5: 1.45 Mt
FUFO: F/F or retarded, airburst or contact, laydownManufactured 1/58 - 3/58, 8/58 - 5/66; retirement of early mods began 1961, last one retired 9/91; 4500 produced (all mods)Multipurpose TN tactical and strategic bomb; longest weapon design in U.S. (33 years); 2nd largest production run of any U.S. weapon design; Y4 was fission only; 20 mods and variants; PAL A (Y1), B (Y2), D (Y3, Y5); replaced by B-61 and B-83 bombs; 1-point safety problem with primary discovered after start of initial manufacture, halting production for 5 months
W-28Warhead20601,500 - 1,72570 Kt - 1.45 MtAirburst or contactManufactured 8/58 - 5/66, entered service (Hound Dog) 1959 and (Mace) 1960;
Hound Dog retired 1/64 - 1976, Mace retired 1970;
production - 900 (Hound Dog), 100 (Mace)
Warhead for the Hound Dog (AGM-28) and Mace (MGM-13) cruise missiles; 5 mods; PAL A and B
W-29Warhead52; 35 1453,500 Canceled Aug 1955Canceled in favor of Mk-15
W-30Warhead2248438; 490; 450300 T; 500 T (Talos and TADM); 4.7 Kt; 19 KtAirburst, contact, time delayTADM: stockpiled 1961 - 1966, 300 produced;
Talos: manufactured 2/59 - 1/65, retired 1/62 - 3/79; 300 produced
Multipurpose warhead: Talos SAM/SSM, XW-30-X1 TADM (Tactical Atomic Demolition Munition) warhead; Talos - 1 yield, 3 mods; TADM - 2 yields stockpiled
W-31Warhead28 - 29; 30 39 - 39.3900 - 9451, 2, 12, 20, 40 KtAirburst, timer, surfaceHonest John: manufactured 10/59 - 12/61, retired 7/67 - 1987, 1650 produced;
Nike Hercules: manufactured 10/58 - 12/61, retired 7/67 - 9/89, 2550 produced;
ADM: stockpiled 9/60 - 1965, 300 produced
Multipurpose boosted fission warhead: Honest John SSM, Nike Hercules SAM, ADM (Atomic Demolition Munition);
Versions used: Honest John: W-31 Mod 0, 3; Nike-Hercules: W-31 Mod 0, 2; ADM: Mk-31 Mod 1;
4 yields stockpiled: 2 for Nike-Hercules, 3 for Honest John (2, 20, and 40 Kt)
W-32Artillery Shell9.45 (240 mm)400; 450Canceled May 1955
W-33Artillery Shell8 (203 mm)37240 - 2435 - 10 Kt, 40 Kt (Y2)Mechanical time delay airburstManufactured 1/57 - 1/65;
Retired 9/92; 2000 produced
W-33 used in the T-317 atomic projectile; gun-assembly HEU weapon; used titanium to reduce weight and size; 4 yields (Y1 - Y4) using different internal HEU assemblies, high yield variant may be boosted; 2 mods
W-34ASW warhead / Bomb1732312; 320; 31111 KtHydrostatic, laydown, impactASW: Manufactured 8/58 - 12/62;
retired 7/64 - 1971 (Lulu), 7/64 - 1976 (Astor);
2000 Lulu, 600 Astor produced;
Hotpoint: Manufactured 6/58 - 9/62;
Retired by 1965;
600 produced
Multipurpose warhead for ASW (antisubmarine warfare) and tactical use; ASW: Mk-34 Lulu depth bomb, Mk-44 Astor torpedo; tactical: Mk-105 Hotpoint bomb, first parachute retarded laydown weapon; 2 mods; boosted fission implosion device identical to the Mk-28 primary
W-35Warhead20; 281,500 - 1,7001.75 MtCanceled Aug 1958Early LASL TN ballistic missile warhead, intended for Atlas, Titan ICBMs, Thor, Jupiter IRBMs; competitor with UCRL W-38; canceled in favor of W-49 (a modified Mk-28)
Mk-36Bomb56.2; 58; 5915017,500; 17,7009 - 10 MtF/F or retarded airburst or contactManufactured 4/56 - 6/58;
Retired 8/61 - 1/62; 940 produced (all mods)
Two-stage TN strategic bomb; Y1 "dirty," Y2 "clean", each in two mods; parachutes 1x5 ft, 1x24 ft ribbon; all Mk-21s converted to Mk-36 in 1957;
Retired in favor of Mk-41; at retirement this weapon represented almost half of the megatonnage of the U.S. arsenal
W-37Warhead30900; 940Canceled Sept 1956Intended to be a high-yield multipurpose companion to the W-31; XW-37 was redesignated XW-31Y2
W-38Warhead3282.53,0803.75 MtAirburst or contactManufactured 5/61 - 1/63; retired 1/65 - 5/65; Production: 110 (Atlas), 70 (Titan)Warhead for Atlas E/F and Titan I ICBMs; used Avco Mk 4 RV; first UCRL designed TN ballistic missile warhead; competitor with LASL W-35/49
Mk-39Bomb35, 44 (tail section)136 - 1406,650 - 6,750 3-4 Mt (2 yields, Y1 and Y2)Airburst, contact; mod w/low-level retarded laydownManufactured 2/57 - 3/59;
Retired 1/62 to 11/66; 700 produced (all mods)
Improved Mk-15, Mk-39 Mod 0 same as TX-15-X3; used gas-boosted primary to reduce weight; thermal batteries, improved safeties; 3 mods; parachutes: 1x6 ft, 1x28 ribbon, 1x100 ft
W-39Warhead34.5 - 35105.76,230 - 6,4003.8 Mt (2 yields, Y1 and Y2)Redstone: stockpiled 7/58 - 1963, 60 produced;
Snark: manufactured 4/58 - 7/58, retired 8/62 - 9/65, 30 produced
Warhead for Snark cruise missile, Redstone MRBM, B-58 weapon pod;
Versions: Redstone Mk-39Y1 Mod 1 and Mk-39Y2 Mod 1, Snark Mk-39Y1 Mod 1; W-39 identical to Mk-39 except for fuzing system
W-40Warhead17.931.64350; 385 (Y1)10 Kt (Y1) Airburst or contactBomarc: manufactured 9/59 - 5/62, retired by 11/72, 350 produced;
Lacrosse: manufactured 9/59 - 5/62, retired 10/63 - 1964, 400 produced
Warhead for Bomarc SAM and Lacrosse SSM; boosted implosion system adapted from Mk-28 primary; initially deployed version (produced 6/59-8/59) not 1-point safe, Mod 2 retrofit required; 2 yields
Mk-41Bomb5214810,500 - 10,67025 MtFUFU: F/F or retarded, airburst or contact, laydownManufactured 9/60 - 6/62;
Retired 11/63 - 7/76; 500 produced
Highest yield U.S. weapon ever deployed; only U.S. 3-stage TN weapon; Y1 "dirty," Y2 "clean"; parachutes 1x4 ft, 1x16.5 ft;
retired in favor of Mk-53
W-41Warhead509,300Canceled July 1957
W-42Warhead13 - 1418.575 - 92ProximityCanceled June 1961Intended for air-to-air (e.g. GAR-8), surface-to-air (e.g. Hawk) applications
Mk-43Bomb18150 - 1642,060 - 2,12570 Kt - 1 Mt;
Y1: 1 Mt,
Y5: 500 Kt
F/F or retarded, airburst or contact, laydownManufactured 4/61 - 10/65;
retirement (early mods) began 12/72, last retired 4/91;
1000 produced (all mods)
Laydown bomb for high-speed low-altitude delivery; 5 yields; Y4 is fission only; PAL B (mod 2); Parachutes: 1x4 ft, 1x23 ft ribbon; last version retired was MK-43Y2 Mod 2
W-44ASW warhead13.7525.317010 KtHydrostaticManufactured 5/61 - 3/68;
retired 6/74 - 9/89;
575 produced
ASROC (RUR-5A) ASW warhead; plutonium implosion warhead, similar to primary for Mk-43
W-45Warhead11.527150;
MADM: 350
500 T; 1, 5, 8, 10, 15 KtAirburst, surface, time delay, commandTerrier: manufactured 4/62 - 6/66, retired 7/67 - 9/88, 750 produced;
MADM: manufactured 1/62 - 6/66, retired 7/67 - 1984, 350 produced;
Bullpup: manufactured 1/62 - 1963, retired 7/67 - 1978, 100 produced;
Little John: manufactured 9/61 - 6/66, retired 7/67 - 1970, 500 produced
Multipurpose UCRL designed tactical warhead; small implosion design; Y1 (1 Kt): Little John SSM, Terrier SAM, MADM (Medium ADM); Y2: Little John, MADM; Y3 (unboosted): GAM-83B Bullpup ASM, MADM; Y4 (boosted, 1 Kt): Bullpup, Little John, Terrier, MADM
Mk-46Bomb376,400Mt range Canceled Oct 1958"Clean" and "dirty" versions tested during Hardtack I; was to have replaced Mk-39; development of improved design continued as Mk-53
W-46Warhead35-40Canceled April 1958Warhead planned for Redstone, Snark, B-58 pod warhead; Redstone/W-46 canceled in favor of Titan II/W-53
W-47Warhead1846.6Y1: 717 - 720;
Y2: 733
Y1: 600 Kt;
Y2: 1.2 Mt
Airburst or contactEC-47 manufactured 4/60 - 6/60, retired 6/60, 300 produced;
W-47 manufactured 6/60 - 7/64, retired 7/61 - 11/74, 1060 produced (Y1 and Y2) - only 300 in service at a time
Polaris SLBM TN warhead; breakthrough in compact, light high yield design; integral warhead/beryllium re-entry vehicle; 3 versions: EC-47, W-47Y1, W-47Y2; several severe reliability problems required repeated modification and remanufacture (in 1966 75% of the stockpiled Y2s were inoperable, correction took until 10/67)
W-48Artillery Shell6.1 (155 mm)33.3118 - 12872 TMechanical time delay or proximity airburst, or contactManufactured 10/63 - 3/68; retirement (135 Mod 0s) 1/65 - 1969, all 925 Mod 1s retired 1992; 1060 produced (all mods)Small diameter linear implosion plutonium weapon, 2 mods
W-49Warhead2054.3 - 57.91,640 - 1,6801.44 MtAirburst or contactManufactured 9/58 - 1964;
Thor retired 11/62 - 8/63 (a few to 4/75);
LASL developed ICBM/IRBM warhead; Used in Thor (Mod 0,1, 3), Atlas (Mod 0, 1), Titan, Jupiter (Mod 0, 1, 3, 5) warhead; 2 RVs used Mk-2 heat sink and Mk-3 ablative; 2 yields, 7 mods; Mk/W-28 adaptation with new arming/fuzing system; PAL A; successor to W-35
W-50Warhead15.444409 - 410Y1: 60 Kt;
Y2: 200 Kt;
Y3: 400 Kt
Airburst or contactManufactured 3/63 - 12/65;
retired 4/73 - 4/91;
280 produced
TN warhead for Pershing SSM (Mod 1, 2), Nike Zeus SAM (canceled 5/59); Mod 1 equipped with PAL A; 3 yields, 2 mods
W-51Warhead22 TBecame XW-54 Jan 1959Very small spherical implosion warhead, initial development by LRL, development transferred to LASL and design redesignated W-54
W-52Warhead2456.7950200 KtAirburst or contactManufactured 5/62 - 4/66;
retired 3/74 - 8/78;
300 produced
Sergeant SSM warhead; 2 yields, 3 mods; PAL A (Mod 2); warhead test in 1963 showed Mods 1 and 2 to be useless, Mod 3 was first to achieve rated yield
Mk-53Bomb50148 - 150;
Y2 144
8,850 - 8,9009 MtFUFO: F/F or retarded, airburst or contact, laydownManufactured 8/62 - 6/65; retirement (early mods) began 7/67, last 50 retired from active service (but retained in permanent stockpile) early 1997; 350 produced, 50 still in stockpileCarried by B-47, B-52; B-58 used Mk-53BA (in BLU-2/B pod); 4 mods, Y1 "dirty" version, Y2 "clean" version; fissile material all HEU, no plutonium; parachutes: 1x4 ft, 1x16.5 ft ribbon, 3x48 ft ribbon; last 50 retired in favor of B-61 Mod 11; part of the U.S. "enduring stockpile"
W-53Warhead371036,2009 MtAirburst or contactTitan II warhead
W-54Warhead10.7515.750 - 51250 TContact or proximityManufactured 4/61 - 2/65; retired 7/67 - 4/72; 1000 - 2000 producedGAR-11/AIM-26A Falcon AAM warhead; originally called "Wee Gnat"; adaptation of Mk-54
Mk-54Warhead10.7517.650 - 5510, 20 TTime delayManufactured 4/61 - 2/65;
retired 7/67 - 1971;
400 produced
Warhead for Davy Crockett M-388 recoilless rifle projectile; 2 yields; 2 mods; very light, compact spherical implosion plutonium warhead
Mk-54 SADMAtomic Demolition Munition (ADM)1624150 (complete);
59 (W-54 only)
Variable, 10 T - 1 KtTime delayManufactured 8/64 - 6/66;
retired 1967 - 1989;
300 produced
SADM:
M-129/M-159 SADM (Special Atomic Demolition Munition) used a Mk-54 warhead package very similar to Davy Crockett; 2 mods; mechanical combination lock PAL
W-55ASW1339.4470Mid Kiloton RangeHydrostaticManufactured 1/64 - 3/68, 3/70 - 4/74;
retired 6/83 - 9/90;
285 produced
SUBROC (UUM-44A) ASW missile thermonuclear warhead; based on the 202 Kt Hardtack I Olive device
W-56Warhead17.447.3600; 6801.2 Mt Airburst or surfaceManufactured 3/63 - 5/69;
retired 9/66 (early mods), Mod-4 retired 1991-93;
1000 produced (all mods), 455 Mod-4s produced
Minuteman I and II warhead, based on UCRL W-47, competitor with the W-59 for Minuteman; 4 mods, retrofit of early mods required to fix reliability problem, blast and radiation hardening added later
Mk-57Bomb14.75118490 - 5105 - 20 KtRetarded airburst, retarded laydown, F/F contact, hydrostaticManufactured 1/63 - 5/67; retirement (early mods) started 6/75, last retired 6/93; 3,100 producedLight weight multipurpose tactical strike/depth bomb; boosted implosion fission weapon; modular design, 6 mods; PAL B; 1x12.5 ft ribbon parachute;
Retired in favor of B-61
W-58Warhead15.640.3257200 KtAirburst or contactManufactured 3/64 - 6/67; retired 9/68-4/82; 1400 producedPolaris A-3 warhead, each A-3 carried three multiple re-entry vehicles (MRVs), first MRV warhead in service
W-59Warhead16.347.8550 - 5531 MtAirburst or contactManufactured 6/62 - 7/63;
retired 12/64 - 6/69;
150 produced
Warhead for Minuteman I/Mk 5 RV and the canceled Skybolt; version of LASL "J-21" design;
W-60Warhead1320115 - 150Very lowProximityCanceled Dec 1963Typhon SAM warhead
MK/B 61Bomb13.3141.64695 - 716Variable (4 yields), 0.3 - 340 Kt;
Mod 3: 0.3 - 170 Kt;
Mod 4: 0.3 - 45 Kt;
Mod 7/11: 10 - 340 Kt;
Mod 10: 0.3 - 80 Kt
FUFO: retarded and F/F, contact or airburst, laydownManufactured 10/66 - early 90s; early mods retired 70s - 80s; 3150 produced, 1350 in serviceMultipurpose tactical/strategic bomb; basic design adapted to many other weapon systems; 4 yields; 11 mods, 5 in service; PAL B, D, F; uses IHE in primary; parachute: 1x17 ft or 1x24 ft ribbon; longest production run of any U.S. nuclear weapon, oldest design in service; part of the U.S. "enduring stockpile"
W-62WarheadRV Body: 21 in;
Warhead: 19.7 in
RV Body: 72 in;
Warhead: 39.3 in
Warhead/RV: 700-800 lb;
Warhead: 253 lb
170 KtAirburst or contactManufactured 3/70 - 6/76;
early mods retired starting 4/80;
1725 produced, 610 in active service;
Minuteman III/Mk-12 RV warhead; remaining W-62s part of U.S. "enduring stockpile", but will be removed from active service under START II (to be replaced by W-88s)
W-63WarheadCanceled Nov 1966LRL design for Lance SSM warhead; ER ("neutron bomb") design; (canceled in favor of W-70
W-64WarheadCanceled Sep 1964LASL design for Lance SSM warhead; ER ("neutron bomb") design; canceled in favor of W-63
W-65WarheadMt rangeCanceled Jan 1968Sprint ABM warhead, canceled in favor of W-66
W-66Warhead1835150Kt range Manufactured 6/74 - 3/75;
retired from service 8/75, ret. from stockpile 1985;
70 produced
Sprint ABM warhead, ER ("neutron bomb") warhead
W-67Warhead150 KtCanceled Dec 1967LRL ICBM/SLBM multiple warhead, intended for Poseidon and Minuteman-III
W-68Warhead36740 - 50 KtAirburst or contactManufactured 6/70 - 6/75; retired 9/77 - 1991; 5250 producedPoseidon Mk-3 RV warhead, each missile carried 10 RVs; aging problems with explosive required complete rebuilding of stockpile 11/78-83 (3200 rebuilt, others retired); largest production run of any U.S. warhead
W-69Warhead1530275170 - 200 KtAirburst or contactManufactured 10/71 - 8/76;
retired 10/91 - 9/94;
1500 produced
SRAM (short range attack missile, AGM 69A) air-surface missile warhead; derived from Mk-61; initially removed from active service 6/90 due to fire safety concerns
W-70Warhead1841270Mods 0,1, 2: variable from 1-100 Kt;
Mod 3: 1 Kt
Airburst or contactManufactured 6/73 - 7/77 (Mods 0-2), 8/81 - 2/83 (Mod 3);
retired 7/79 - 9/92;
Mods 0-2: 900 produced, Mod 3: 380 built
Lance SSM warhead; LRL successor to W-63 design; 4 mods; Mods 0, 1, 2: TN warhead with 3 yield settings (1-100 Kt), Mod 1 had improved selection of yields; Mod 3: enhanced radiation ("neutron bomb") version, 2 yield options (slightly less than 1 Kt, and slightly more than 1 Kt), both 60% fusion and 40% fission; PAL D
W-71Warhead421012,8505 MtAirburst (command & delay timer)Manufactured 7/74 - 7/75;
retired from service 1975, ret. from stockpile 9/92;
30 produced
Spartan ABM warhead, used thermal x-rays for exoatmospheric RV kill
W-72Warhead1579825ca. 600 TContactManufactured 8/70 - 4/72;
retired 7/79 - 9/79;
300 produced
Walleye (AGM-62) guided glide bomb warhead; W-72 was a modified W-54, salvaged from retired AIM-26A Falcon AAM; yield was significantly enhanced over Falcon version
W-73Warhead<17Canceled Sept 1970Condor ASM warhead; derived from Mk-61; canceled in favor of a conventional HE warhead
W-74Artillery Shell6.1 (155 mm)2 yields (both >100 T)Canceled June 1973Linear implosion pure fission plutonium warhead; intended to replace W-48
W-75Artillery Shell8 (203 mm)>100 TCanceled 1973"Big brother" of W-74, similar design
W-76Warhead363100 KtAirburst or contactManufactured 6/78 - 7/87;
active service;
approx. 3000 produced
Trident I and Trident II Mk-4 RV TN warhead, missiles can carry 8-14 RVs; developed by LANL; part of the U.S. "enduring stockpile"
B-77Bomb181442,400Variable, Kt to Mt rangeFUFOCanceled Dec 1977High yield strategic TN bomb, intended to replace Mk-28 and Mk-43; PAL D; costly, heavy delivery system lead to cancellation, warhead design continued with B-83
W-78Warhead21.2567.7400 - 600335 - 350 KtAirburst or contactManufactured 8/79 - 10/82;
active service;
1083 produced, 920 in service
Minuteman III/Mk-12A RV warhead; LANL design derived from W-50 with a new lighter primary; part of U.S. "enduring stockpile", but will be removed from active service under START II (to be replaced by W-88s)
W-79Artillery Shell844200Variable - 100 T to 1.1 Kt (Mod 0), 0.8 Kt (Mod 1)Proximity airburst or contactManufactured 7/81 - 8/86; ER version retirement started mid-80s, all retired 9/92; 550 (325 ER, 225 fission) producedPlutonium linear implosion weapon, used in XM-753 atomic projectile (AFAP); Mod 0: dual capable - pure fission or enhanced radiation (ER of "neutron bomb"), 3 yield options; Mod 1: fission only; PAL D
W-80-0Warhead11.831.4290Variable: 5 Kt and 170-200 KtAirburst or contactManufactured 12/83 - 9/90;
active service;
367 produced
SLCM warhead; uses supergrade plutonium; PAL D; LANL design derived from Mk/B-61 warhead; now stored ashore; part of the U.S. "enduring stockpile"
W-80-1Warhead11.831.4290Variable: 5 Kt and 150-170 KtAirburst or contactManufactured 1/81 - 9/90;
active service;
1750 produced, 1400 in service
Warhead for ALCM (1000 in service), ACM (400 in service); PAL D; LANL design derived from Mk/B-61 warhead; part of the U.S. "enduring stockpile"
W-81Warhead<13.52 - 4 KtCanceled 1986USN Standard SM-2 SAM warhead; PAL F; variant of Mk/B-61 warhead, enhanced radiation version initially planned, later converted to fission only
W-82Artillery Shell6.1 (155 mm)3495<2 KtAirburst W-82-0 canceled in Oct 1983; W-82-1 canceled in Sept 1990
155 mm companion to the the W-79, for use in XM-785 atomic projectile (AFAP); original Mod 0: dual capable - pure fission or enhanced radiation; Mod 1: fission only; PAL D
B-83Bomb181452,400Variable, low Kt to 1.2 MtFUFO: F/F or retarded, airburst or contact, laydownManufactured 6/83 - 1991;
active service;
650 produced
Current high-yield strategic TN bomb; PAL D; uses IHE, fire resisitant pit; parachutes: 3x4 ft, 1x46 ft; 1x5 ft, 1x46 ft
W-83Warhead1,700 - 1,900PAL D
W-84Warhead1334388Variable: 0.2 - 150 KtAirburst or contactManufactured 9/83 - 1/88;
inactive stockpile;
300-350 produced
GLCM warhead, missile scrapped under INF Treaty; LLNL design derived from LANL Mk/B-61 Mod 3/4 warhead; uses IHE, PAL F; part of the U.S. "enduring stockpile"
W-85;
alternate image
Warhead12.542880Variable: 5 - 80 KtAirburst or contactManufactured 2/83 - 7/86;
retired 1988 - 3/91;
120 produced
Pershing II SSM warhead; derived from LANL Mk/B-61 Mod 3/4 warhead; uses IHE, PAL F; upon retirement the W-85 was recycled into B-61 Mod 10 bombs
W-86WarheadDelayedCanceled Sept 1980Earth penetrating warhead for the Pershing II SSM, canceled due to change in mission from hard to soft targets
W-87Warhead21.868.9500 - 600; 440300 Kt;
upgradeable to 475 Kt
Timer or proximity airburst, contactManufactured 7/86 - 12/88;
active service;
525 produced
Peacekeeper (MX) ICBM/Mk-21 RV TN warhead (missile carries 10); RV/warhead weighs 800 lb; LLNL design; primary uses IHE and fire resistant pit; yield upgradeable by adding HEU rings to secondary; part of the U.S. "enduring stockpile"; after MX retirement, will equip Minuteman III
W-88Warhead21.868.9<800475 KtTimer (w/path length correction) and proximity airburst; contactManufactured 9/88 - 11/89; active service;
400 produced
Trident II Mk-5 RV warhead; does not use IHE; uses HEU jacket with secondary stage; production terminated by FBI raid on Rocky Flats; part of the U.S. "enduring stockpile"
W-89Warhead13.340.8324200 KtAirburst or contactCanceled Sept 1991SRAM (short range attack missile) II warhead; LLNL design; safety features: PAL D, IHE, FRP; also considered for Sea Lance ASW missile
B 90Bomb13.3118780200 Ktretarded airburst, retarded contact, F/F airburst, F/F contact, hydrostaticCanceled 1991USN nuclear strike/depth bomb; intended to replace Mk-57; PAL D; 1x26 ft parachute
W-91Warhead31010, 100 KtCanceled Sept 1991SRAM-T (short range attack missile - tactical) warhead; SRAM-T was a SRAM II derivative for the F-15E Eagle fighter/bomber; LASL TN design orignally called "New Mexico 1"; safety features: FRP, IHE; 2 yields


Abbreviations:


Principal Sources:
Swords of Armageddon by Chuck Hansen, 1995
U.S. Nuclear Weapons: The Secret History by Chuck Hansen, 1988
Nuclear Weapons Databook: U.S. Nuclear Forces and Capabilities by Thomas B. Cochran, William M. Arkin, and Milton M. Hoenig, 1984
NRDC Nuclear Notebook prepared by Robert S. Norris and William Arkin of the Natural Resources Defense Council, published in The Bulletin of the Atomic Scientists.
Especially in issues:

Nuclear Weapons of the United States by James N. Gibson, 1996.