| Official name | SALYUT 4 |
| Alternative name | Salyut 4 |
| Cospar ID | 1974-104A |
| Norad ID | 7591 |
| Launch date | 1974-12-26 |
| Launch site | TTMTR |
| Launch vehicle | Proton-K |
| Country/Organization | USSR |
| Type application | Space station |
| RCS size | UNKNOWN |
| Decay date | 1977-02-02 |
| Shape | Cyl + 3 Pan |
| Mass (kg) | 18731.42 |
| Diameter (m) | 4.15 |
| Height (m) | 13.99 |
| Span (m^2) | 13.99 |
| Contractors | TsKBEM → NPO Energia |
| Propulsion | KTDU-66 |
| Configuration | DOS type |
| Power | 3 deployable solar arrays, batteries |
| Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|---|
| COSMOS 557 | 1973-026A | 1973-05-11 | TTMTR | Proton-K | ||
| SALYUT 4 | 1974-104A | 1974-12-26 | TTMTR | Proton-K |
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