P37 or P-37 may refer to:
*
Curtiss YP-37
The Curtiss P-37 was an American fighter aircraft made by Curtiss-Wright in 1937 for the US Army Air Corps. A development of the Curtiss P-36 Hawk to use an inline engine instead of the radial engine of the P-36 the fuselage was lengthened an ...
, an American prototype fighter aircraft
* , a submarine of the Royal Navy sold for scrap in 1949
* , a submarine of the Royal Navy lost in 1942
*
Papyrus 37
Papyrus 37 designated by 𝔓37 (in the Gregory-Aland numbering) is an early copy of the New Testament in Greek. It is a papyrus manuscript of the Gospel of Matthew dating to the 3rd century, sometime around 250-260 CE, due to its affinities with ...
, a biblical manuscript
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Phosphorus-37
Although phosphorus (15P) has 23 isotopes from 25P to 47P, only 31P is stable; as such, phosphorus is considered a monoisotopic element. The longest-lived radioactive isotopes are 33P with a half-life of 25.34 days and 32P with a half-life of 14.2 ...
, an isotope of phosphorus
*
PZL.37 Łoś
The PZL.37 ''Łoś'' (''moose'') was a Polish twin-engined medium bomber designed and manufactured by national aircraft company PZL. It is also known as "PZL P-37" or "PZL P.37", but the letter "P" was generally reserved for fighters of Zygmunt Pu ...
, a Polish medium bomber
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