| Abbreviation | Definition |
|---|---|
| RHEB | Right Hand Equipment Bay |
| RHEO | Rheostat |
| RHFEB | Right Hand Forward Equipment Bay |
| RHL | Residual Hazards List |
| RHM | Relative Humidity Monitor |
| RHP | Right Hand Panel |
| RHS | Right Hand Side |
| RHS | Rocketdyne Hybrid Simulator |
| RHSC | Right Hand Side Console |
| RHT | Radiant Heat Temperature |
| RHU | Radioactive Heater Unit |
| RHU | Radioisotope Heater Unit |
| RHW | Router Header Word |
| RI | Rockwell International |
| RIB | Recoverable Item Breakdown |
| RIB | Right InBoard |
| RIC | Resistance Inductance and Capacitance |
| RIC | Rockwell International Corporation |
| RICC | Remote Intercomputer Communications Interface |
| RID | DSN Station at Madrid, Spain |