5H or 5h may refer to: * Fifth Harmony, the American girl group * 5H, a type of lead in a pencil *

SSH 5H (WA) State Route 507 (SR 507) is a Washington state highway in Lewis, Thurston and Pierce counties that extends from (I-5) and (US 12) in Centralia to in Spanaway. The highway also intersects in Yelm and in McKenna. The fir ...

, alternate designation for Washington State Route 507 *

Fly540 Five Forty Aviation Ltd, trading as Fly540, is a low-cost airline which commenced operations in 2006 and is based in Nairobi, Kenya, operating both passenger and cargo services. The airline had two subsidiary airlines, Fly540 Ghana (suspended in ...

(IATA code) * ⁵H, a highly unstable

isotope of hydrogen Hydrogen (1H) has three naturally occurring isotopes, sometimes denoted , , and . and are stable, while has a half-life of years. Heavier isotopes also exist, all of which are synthetic and have a half-life of less than one zeptosecond (10� ...

* '' City of Death'' (production code: 5H), a 1979 ''Doctor Who'' serial

See also