S-V
| S-V stage on top of the S-IV | |
| Manufacturer | Convair | 
|---|---|
| Country of origin | United States | 
| Used on | Saturn I (stage 3) | 
| General characteristics | |
| Height | 9.14 m (30.0 ft) | 
| Diameter | 3.05 m (10.0 ft) | 
| Gross mass | 15,600 kg (34,400 lb) | 
| Propellant mass | 13,604 kg (30,000 lb) | 
| Empty mass | 1,996 kg (4,400 lb) | 
| Associated stages | |
| Family | Saturn | 
| Derivatives | Centaur | 
| Launch history | |
| Status | Retired | 
| Total launches | 4 | 
| Successes (stage only) | 4 | 
| Failed | 0 | 
| First flight | October 27, 1961 | 
| Last flight | March 28, 1963 | 
| S-V | |
| Powered by | 2 RL-10 engines | 
| Maximum thrust | 133.45 kN (30,000 lbf) | 
| Specific impulse | 425 s (4.17 km/s) | 
| Burn time | 425 s | 
| Propellant | LH2 / LOX | 
The S-V (pronounced "S-five") was the third stage of the Saturn I rocket. It was built by Convair. It was designed to use two RL-10A-1 engines fueled by liquid hydrogen (LH2) and liquid oxygen (LOX) in tanks utilizing a common bulkhead to separate the propellants.