| Abbreviation | Definition |
|---|---|
| HB6 | Hot Bird 6 |
| HBA | Hydraulic Brake Assist |
| HBI | Hot Briquetted Iron |
| HBM | Hot Briquette Machine |
| HCAF | High Calculated Air Flow |
| HCI | Hardness Critical Item |
| HCMC | Haverhill Cable and Manufacturing Corporation |
| HDG | Hot Dipped Galvanized |
| HG | Harbour Generator |
| HHSC | Hexagonal Head Cap Screw |
| HLF | Hole Location File |
| HMA | Honda Manufacturing of Alabama |
| HMCP | Hardware Manufacturing Cluster Parks |
| HMMA | Hyundai Motor Manufacturing Alabama |
| HMMM | Hino Motors Manufacturing Mexico |
| HMMR | Hyundai Motor Manufacturing Russia |
| HMN | Haban Manufacturing Number |
| HOUR | Harmony One Universal Remote |
| HPOFC | High Purity Oxygen Free Copper |
| HR | Human Readable |