H13

H13, H-13 or H.13 may refer to:

Roads

H-13 (Michigan county highway), a road in the United States
Highway H13 (Ukraine)

Vehicles

Bell H-13 Sioux, an American helicopter
HMS H13, a H-class submarine ordered by but not commissioned into the Royal Navy
Lioré et Olivier LeO H-13, a French flying boat
LSWR H13 class, a British steam railcar

Other uses

DIN 1.2344 tool steel, a tool steel grade
London Buses route H13, a public transportation route in England
A class of high-efficiency particulate air filter

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