P40 may refer to:

Proteins

Interleukin-12 subunit beta Subunit beta of interleukin 12 (also known as IL-12B, natural killer cell stimulatory factor 2, cytotoxic lymphocyte maturation factor p40, or interleukin-12 subunit p40) is a protein that in humans is encoded by the IL12B gene. IL-12B is a common ...

* Neutrophil cytosolic factor 4 *

Ribosomal protein SA 40S ribosomal protein SA is a ribosomal protein that in humans is encoded by the ''RPSA'' gene. It also acts as a cell surface receptor, in particular for laminin, and is involved in several pathogenic processes. Function Laminins, a family of ...

Vehicles

* *

Carro Armato P 40 The P 26/40 was an Italian World War II heavy tank. It was armed with a 75 mm gun and an 8 mm Breda machine gun, plus another optional machine gun in an anti-aircraft mount. Design had started in 1940 but very few had been built by the ...

, an Italian tank * Curtiss P-40 Warhawk, an American military aircraft *

Percival Prentice The Percival Prentice was a basic trainer of the Royal Air Force in the early postwar period. It is a low-wing monoplane with a fixed tailwheel undercarriage. Front seating was in a side-by-side configuration with a rear seat provided. Desig ...

, a British trainer aircraft * Pottier P.40, a French sport aircraft * P40 Genesis, an American locomotive

Other uses

Huawei P40 Huawei P40 is a line of high-end Android-based smartphones manufactured by Huawei. Unveiled on 26 March 2020, they succeed the Huawei P30 in the company's P series line. Design The P40 and P40 Pro are constructed with anodized aluminum for t ...

, a smartphone * Kel-Tec P-40, a pistol *

Nonidet P-40 Nonidet P-40 is a nonionic, non-denaturing detergent. Its official IUPAC name is octylphenoxypolyethoxyethanol. Nonidet is a trademark of Shell Chemical Co. Nonidet P-40 is sometimes abbreviated as NP-40, but should not be confused with a differe ...

, a detergent *

P-40 APPLE mine The P-40 mine is a Vietnamese anti-personnel fragmentation stake mine. The mines were produced using the spherical steel cases of United States BLU-24/B and BLU-66 submunitions on top of which is a plastic adaptor to accept an MUV style tripwire fu ...

, a Vietnamese mine * P-40 radar, a Soviet radar *

Papyrus 40 Papyrus 40 (in the Gregory-Aland numbering), designated by 𝔓40, is an early copy of the New Testament in Greek. The manuscript paleographically has been assigned to the 3rd century. Description It is a papyrus manuscript of the Epistle to ...

, a biblical manuscript * Phosphorus-40, an isotope of phosphorus * ThinkPad P40 Yoga, a laptop * P40, a

Nissan P engine The Nissan P engine is a large overhead valve, inline-six cylinder engine manufactured by Nissan Diesel Motor Co., Ltd. from 1959 to 2003 and used in light-duty trucks by Nissan, as well as in the Nissan Patrol. It replaced Nissan's older, sideva ...

{{Letter-NumberCombDisambig