NASA Abbreviations and Acronyms

1. L&M
   List of Materials
2. L&M
   Light and Medium Vehicles Office
3. L&T
   Load Test
4. L&T
   Laboratories and Test
5. L&T
   Laboratory and Test
6. L-RFE
   L-band RF electronics
7. L/R
   Locus of Radius
8. LaNi5
   lanthanum pentanickel
9. LASERCOM
   laser communications payload
10. LATRS
    Laser Acquisition and Tracking System
11. LCH4
    liquid methane
12. LEFF
    launch effectivity
13. LLO2
    Lunar Liquid Oxygen
14. M&I
    management and integration
15. M&I
    Minimum Impulse
16. M-M-L-S
    Model-Modes-Loads-Stresses
17. M/LR
    Maintenance Loop Recorder
18. M/PHE
    material or personnel handling equipment
19. M/SCI
    mission/safety-critical item
20. M/U
    Mockup

Last updated: May 6, 2025 — Total entries: 14,020