B53 or B-53 may refer to :
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B53 nuclear bomb
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HLA-B53
HLA-B53 (B53) is an HLA- B serotype
A serotype or serovar is a distinct variation within a species of bacteria or virus or among immune cells of different individuals. These microorganisms, viruses, or cells are classified together based on t ...
, an HLA-B serotype
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Convair XB-53
The Convair XB-53 was a proposed jet-powered medium bomber aircraft, designed by Convair for the United States Army Air Forces. With a radical tailless, forward-swept wing design, the aircraft appeared futuristic; however, the project was can ...
, an American aircraft
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