Alphabetical Listing of US Military Acronyms
- ISPE — Improved Sonar Processing Equipment (ssbn)
- ISPW — International Software Process Working Group
- ISSI — International Software Systems Incorporated
- ISST — Infrared Surveillance of Surface Targets
- ITCS — Integrated Target Control System
- ITF — Integration Test Folder
- ITL — Integrated Test Lines
- ITO — Identifying Technical Order
- ITRO — Interservice Training Review Organization
- ITS — Interim Trainer Support
- ITSC — Interservice/industry Training Systems Conference
- ITSS — Integrated Tactical Surveillance System
- IU — Interface Unit
- IUH — Instructor Utilization Handbook
- IUS — Interim (inertial) Upper Stage
- IUSS — Integrated Undersea Surveillance System
- IV&V — Independent Verification And Validation
- IX — Unclassified Miscellaneous Ships
- J&A — Justification & Approval
- J-MASS — Joint-modeling And Simulation System
- J/S — Jam-to-signal
- JASS — V-22 (jvx) Applications & Systems Software
- JC — Jump Commander
- JCMDR — Jump Commander
- JCS — Joint Chiefs of Staff
- JETT — Jettison
- JFET — Junction Field Effect Transistor
- JILSP — Joint Integrated Logistic Support Plan
- JINTACCS — Joint Interoperability of Tactical Command And Control System
- JLC — Joint Logistics Commanders
- JMASS — Joint-modeling And Simulation System
- JON — Job Order Number
- JPATS — Joint Primary Aircraft Training System
- JPTDS — Junior Participating Tactical Data System
- JQR — Job Qualification Requirement
- JRMB — Joint Requirements And Management Board
- JSIL — Jvx System Integration Laboratory
- JSOR — Joint Services Operations Requirements
- JSRB — Joint Software Review Board
- JSSS — Jvx (v-22) Simulation Support Software
- JTFEX — Joint Task Force Exercise
- JTIDS — Joint Tactical Information Distribution System
- JTMS — Jvx (v-22) Test And Maintenance Software
- JTSS — Jvx (v-22) Test Support Software
- JUSTIS — Joint Uniform Services Technical Information System
- JVX — Joint Services Vertical Lift Aircraft Experimental
- KCAS — Knots Calibrated Airspeed
- KDSI — Thousands of Delivered Source Instructions
- KHZ — Kilohertz
- KI — Knowledge Information
- KOPS — Thousands of Operations Per Second
- KTAS — Knots True Airspeed
- KVA — Kilovolt-amps
- KW — Kilowatt(s)
- L — Left
- LAMPS — Light Airborne Multi-purpose System
- LAN — Local Area Network
- LANTIRN — Low Altitude Navigation And Targeting Infrared For Night
- LASC — Lockheed Aeronautical Systems Company
- LASER — Light Amplification Stimulated Emission Radiation
- LAT — Lateral
- LAT — Latitude
- LATAGS — Laser Tactical Air Gunnery System
- LATWING — Light Attack Wing
- LAV — Light Assault Vehicle
- LAW — Low Altitude Warning
- LBL — Left Butt Line
- LCAC — Landing Craft, Air Cushion
- LCC — Amphibious Command Ship
- LCC — Life Cycle Costing
- LCCB — Local Change Control Board
- LCCPT — Low-cost Cockpit Procedures Trainer (helo Trainer)
- LCK — Lock
- LCM — Landing Craft, Mechanized
- LCN — Logistic Support Analysis Control Number
- LCPL — Landing Craft, Personnel, Large (mk 12)
- LCU — Landing Craft, Utility
- LCVP — Landing Craft, Vehicle, Personnel
- LDG — Landing Gear Ldgpdslanding Gear Position
- LDGPOS — Landing Gear Position
- LED — Light Emitting Diode
- LEMP — Lightning Electromagnetic Pulse
- LEN — Length
- LF — Low Frequency
- LF-ADF — Low Frequency-automatic Direction Finding
- LFA — Low Frequency Adjunct
- LGCU — Landing Gear Control Unit
- LGWCAS — Laser Guided Weapons In Joint Close Air Support
- LH — Left Hand
- LHA — Amphibious Assault Ship (general Purpose)
- LHA — Amphibious Helicopter Assault Carrier
- LHD — Amphibious Helicopter Assault Carrier Dock
- LIC — Laser Intercept Capability (mod)
- LIN — Linear
- LIN — Liquid Nitrogen
- LK CPLG — Locked And Coupled
- LKA — Amphibious Cargo Ship (landing Craft Carriers)
- LLCSC — Loser-level Computer Software Component
- LLL — Logistics Lesson Learned
- LMU — Lighting Mockup