| Abbreviation | Definition |
|---|---|
| IMTC | Iowa Manufacturing Technology Center |
| IMTS | International Manufacturing Technology Show |
| IMWG | Industry Manufacturing Working Group |
| INAM | Illinois Network for Advanced Manufacturing |
| INBD | Inboard |
| InHG | Inches of Mercury |
| INSTL | Installation |
| INTEG | Integration |
| IOLC | Iron Ore Loading Complex |
| IP | Installation Plan |
| IP | Intellectual Property |
| IPDL | Installation Plan Data List |
| IPI | In Process Inspection |
| IPMC | Iran Piston Manufacturing Company |
| iPSM | Integrated Product Standards Management (Manager) |
| IPST | Integrated Processes and Systems Test(ing) |
| IPT | Integrated Process (Product) Team |
| IRF | Integration Reference Frame |
| IRM | Installation Requirements Model |
| ISA | Inside Surface of Assembly |