Here is an overview of US air-dropped bombs.
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Conventional Bombs
KEY: Bomb name / weight [kg] / Purpose
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M30A1 45.4 General Purpose
M38A2 45.4 Practice
M40A1 10.4 Fragmentation
M41A 9.1 Fragmentation/ shaped-charge
M47 45.4 Incendiary / Smoke
M50 1.81 Thermite, incendiary
M52 454 Armour-piercing
M56 1814 Blast
M57 113 General Purpose
M58 227 Semi-armor piercing
M59 454 Semi-armor piercing
M64 227 General Purpose
M65 454 General Purpose
M66 907 General Purpose
M69 2.7 Incendiary
M70 52.2 Mustard gas / gel
M74 4.5 Incendiary
M76 227 Incendiary
M78 227 or 454 Gas
M81 117.9 Fragmentation
M82 40.8 Fragmentation
M83 1.81 Fragmentation
M86 54.4 Fragmentation
M88 99.8 Fragmentation
M103 907 Semi-armor piercing
M104 45.4 Leaflet
M105 227 Leaflet
M109 5443 General Purpose
M110 9979 General Purpose
M113 56.7 Gas
M116 340 Napalm
M117 340 General Purpose
M118 1361 General Purpose, low-drag
M121 4536 General Purpose
M124 113 Practice
M125 4.54 Gas
M126 1.81 Incendiary
M129 340 Leaflet
MC1 340 Gas
Mk 1 907 Blast
Mk 1 Mod 1/1/3 726 Armour-piercing
Mk 5 1.36 Practice
Mk 15 45.4 Practice
Mk 23 1.36 Practice
Mk 33 454 Armour-Piercing
Mk 36 Delayed fuse (triggered by passing vehicles)
Mk 65 227 Practice
Mk 66 454 Practice
Mk 76 11.3 Practice
Mk 77 Mod 0 340 Fire
Mk 79 454 Fire (napalm)
Mk 81 113 General purpose, Low-drag
Mk 81 Mod 1 Snakeye 113 General purpose, High-drag
Mk 82 227 General purpose, Low-drag
Mk 82 Mod 1 Snakeye 254 General purpose, High-drag
Mk 83 454 General purpose, Low-drag
Mk 83 Mod 2/3 454 General purpose, High-drag
Mk 84 894 General purpose, Low-drag
Mk 86 113 Practice
Mk 87 227 Practice
Mk 88 454 Practice
Mk 89 25.4 Practice
Mk 94 227 Gas (Sarin)
Mk 106 2.27 Practice
k 111 454 Demolition
Mk 116 Weteye 340 Chemical
Mk 122 Fireye Fire
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Rockets
KEY: Type / Size
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Mk 4 2.75 in
Mk 40 2.75 in
Mk 66 2.75 in
Zuni 5 in
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Rocket Warheads
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M247 Shaped-charge (2.75in)
M255 Flechette fragmentation (2.75in)
M261 Subminution dispenser (2.75in)
M262 Illumination (2.75in)
M264 Smoke Screen (2.75in)
M267 Smoke, training (2.75in)
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Nuclear Bombs
KEY: Bomb / Yield / Type / Weight [kg]
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B28 70kt to 1.45MT Fusion
919 to 1152
B43 1MT Fusion 934 to 971
B53 9MT Fusion 4014
B57 5kT to 10kT Fission 231 to 322
B61 10kT to 100kT Boosted Fission 326 to 347
B83 MT Fission 1092