Surveyor 5 was the fifth lunar lander of the Surveyor program.
- Launched September 3, 1967; landed September 11, 1967
- Weight on landing: 625 lbs
The mission experienced a helium leak that could have resulted in failure. An improvised landing sequence was successful and data was received for 2 weeks after the landing. A miniature chemical analysis lab using an alpha particle backscatter device was used to determine the lunar surface soil consisted of basaltic rock.