Engine Abbreviations and Acronyms

1. NRMM
   Non-Road Mobile Machinery
2. NRS
   Net Research Server
3. NRTC
   Non-Road Transient Cycle
4. NRTC
   Non Road Transient Cycle
5. NSCR
   Non-Selective Catalytic Reduction
6. NSPA
   National Sled Pulling Association
7. NTR
   Nuclear Thermac Rockets
8. NTRS
   Nuclear Thermal Rockets
9. NTS
   Negative Torque Sensing
10. NVCS
    Nissan Valve-Timing Control System
11. NVH
    Noise and Vibration Harshness
12. NZS
    New Zealand Search
13. OAT
    Organic Additive Technology
14. OC
    Oxidation Catalytic
15. OC
    Oxedation Converter
16. OCI
    Oil Change Interval
17. OCM
    On-Condition Maintenance
18. OCM
    On Condition Maintenance
19. OCR
    Oil Control Ring
20. OCS
    Overdrive Cancel Switch

Last updated: May 23, 2020 — Total entries: 1,667