Alphabetical Listing of NASA Acronyms
- ISCM — JSC Manual
- ISI — Initial Systems Installation
- ISI — Instrumentation Support Instruction
- ISIL — Interim Support Items List
- ISL — Inertial Systems Laboratory
- ISL/LAR — Integrated Logistics System And Logistics Assessment
- ISL/LAR — Review
- ISLM — Integration Shop/Lab Manager
- ISO — International Standardization Organizations
- ISOL — Isolate
- ISP — Initial Specific Impulse
- ISP — Instrumentation Support Plan
- ISP — Integrated Support Plan
- ISPG — Institutional Support Planning GrouP
- ISPM — International Solar Polar Mission
- ISR — Initial System Release
- ISS — Inertial Subsystem
- ISS — Inhibit/Override Summary Snapshot Display
- ISS — Installation Support Services
- ISS — Instruction Summary Sheet
- ISS — Integrated System Schematic
- ISSL — Initial Spares Support List
- ISSUING — AgeIssuing Agency
- ISTA — Intertank Structural Test Assembly
- ISTB — Integrated Subsystem Test Bed
- ISTF — Integrated System Test Flow
- IT — Identification Transponder
- IT — Installation Test
- ITA — Integrated Test Area
- ITA — Integrated Test Article
- ITAP — Integrated Technical Assessment Panel
- ITC — Igloo Thermal Control
- ITE — Instrumentation Test Equipment
- ITE — Integration Test Equipment
- ITE — Intersite Transportation Equipment
- ITERATIVE — GIterative Guidance Mode
- ITI — Inspection And Test Instruction
- ITL — Integrate
- ITMG — Integrated Thermal/Micrometeoroid Garment
- ITO — Integration And Test Order
- ITRDS — Integrated Test Requirements Documents
- ITS — Instrumentation Telemetry Station
- ITS — Interim Teleprinter System
- IU — Instrument Unit
- IU — Interface Unit
- IU — Interface Unit
- IUA — Inertial Unit Assembly
- IUA — Interface Unit AdaPter
- IUE — Interface Unit Error Count Table
- IUS — Inertial Upper Stage
- IUS — Inertial UPper Stage (was Interim UPper Stage)
- IUS — Interim Use Sheet
- IUS — Interim/intermediate UPper State
- IUS — International Ultraviolet ExPlorer
- IV — Initial Velocity
- IV — Integrated Vehicle
- IV — Interface Volume
- IV — Interior Upper Stage
- IV — Intravehicular
- IVA — Intravehicular Activity
- IVA — Intravehicular Activity
- IVAR — Internal Variable
- IVBC — Integrated Vehicle Baseline Config
- IVC — Intervehicular Communications
- IVE — Interface Verification EquiPr-nent
- IVL — Lntervatometer
- IVSI — Instantaneous Vertical Speed Indicator
- IVT — Intervehicular Transfer
- IWBS — Indirect Work Breakdown Structure
- IWG — Interface Working Group
- IWG — Investigator Working Group
- J/M — Jettison Motor
- JAEIC — Joint Atomic Energy Intelligence Committee
- JAN — Joint Army-Navy
- JAS — Journal Of Aerospace Science
- JB — Junction Box
- JCL — Job Control Language
- JCP — Joint Power Conditions
- JCT — Junction
- JED — Julian Ephemeris Data
- JETS — Joint Electronics Type (Designation) System
- JETT — Jettison
- JIR — Job Improvement Request
- JO — Job Order
- JOD — Joint Occupancy Data
- JOD — Joint Occupancy Date
- JOIP — Joint Operations Interface Procedure
- JOP — Joint Operating Procedure
- JOP — Jupiter Orbiter Probe-Galilee
- JOR — Job Order Request
- JOULE — (SI UJoule (SI Unit)
- JOVIAL — Joules Own Version International Algebraic Language
- JP — Jet Propellant
- JP — Jet Propulsion
- JPC — Joint Power Condition
- JPIC — Joint Program Integration Committee
- JPL — Jet Propulsion Laboratory
- JPL — Jet Propulsion Laboratory
- JPOC — JSC Payload Operations Center
- JPP — Joint Program Plan