| Abbreviation | Definition |
|---|---|
| USM | Ultra-Slow Motor |
| USP | Universal Suspension Pump |
| UST | Ultra Stress And Tension |
| UTB | Under The Bonnet |
| UTE | Upgrade To Eight |
| UTFD | Ultrasonic Testing Flaw Detector |
| UTFF | Ultimate Test For Fit |
| UTG | Ultrasonic Thickness Gage |
| UTJ | Uster TensoJet |
| UTLA | Unicycle Two-Link Arm |
| UTSA | United Trade Secrets Act |
| UTSS | Ultra Thin Seat Stay |
| UVIS | Under Vehicle Investigation System |
| UWL | Underfloor Wheel Lathe |
| UXH | UNITEK CrossHead |
| UXL | Ushio Xenon Lamp |
| V | Valve |
| V | Vase |
| VAL | Violator At Large |
| VAR | Vacuum Arc Remelted |