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- Laser Target Designator/Ranger (LTD/R) for F/A-18
- LC-750EV PIP General Avionics Computer (GAC)
- Light Weight Wide Aperture Array (LWWAA)
- LISA-200 FOG AHRS
- LN-100G Inertial Navigation System with Embedded GPS
- LN-100LG Launch and Reentry GPS Inertial Navigation System
- LN-100R Embedded INS/GPS
- LN-100S Guidance and Navigation System
- LN-120G Stellar-Inertial Navigation System
- LN-200 Inertial Measurement Unit (IMU)
- LN-201 Inertial Reference Unit (IRU)
- LN-251 Embedded Inertial Navigation System/GPS System
- LN-260 Advanced Embedded INS/GPS
- LN-270 Pointing Locating Navigating System (PLANS)™ Inertial Navigation System INS-GPS
- LN-92 Inertial Navigation System
- LN-93 Inertial Navigation System
- LN-94 Inertial Navigation System
- Logistics Services
- Longbow Fire Control Radar
- Longbow Missile
- LR-100 EW Receiver
- LTN-101E GNADIRU (Global Navigation Air Data Inertial Reference Unit)
- LTN-101 FLAGSHIP GNADIRU
- LTN-2001 GPS Sensor Unit
- LTN-2012 Global Navigation Satellite System (GNSS)
- LTN-90-100 Inertial Reference System (IRS)
- LTN-92/CMA-900 Inertial FMS
- LTN-92 Ring Laser Gyro Inertial Navigation System
- LTR-97 Fiber Optic Gyro VG/DG Replacement System
- LTR-97 LHAS Fiber Optic Gyro Heading and Attitude System