NASA Acronyms

Alphabetical Listing of NASA Acronyms

  • OGS — Quantity Gaging System
  • OGV — Oxygen Gage Valve
  • OH — Overhaul
  • OH — Overhead
  • OHA — Operational Hazard Analysis
  • OHA — Orbital Height Adjustment Maneuver
  • OHC — Onboard Hard Copier
  • OHC — Optics Hand Controller
  • OHF — Occupational Health Facility
  • OHGVT — Orbiter Horizontal Ground Vibration Test
  • OHMM — Ohmmeter
  • OI — Operational Instrumentation
  • OIA — Office Of International Affairs
  • OIA — Orbiter Interface Adapter
  • OIB — Orbiter Interface Box
  • OIC — Orbiter (Orbital) Integrated Checkout
  • OIL — Operations Integration Instruction
  • OIR — Operations IntegrationReview
  • OIS — Operational Intercommunication System
  • OIS — Orbiter Instrumentation Systems
  • OISR — Open Item Status Report
  • OISSP — Office Of Interim Space Station Program
  • OIT — Orbiter Integrated Test
  • OIV — Oxidizer Isolation Valve
  • OIVS — Orbiter Interface Verification Set
  • OJT — On-the-Job Training
  • OL — Open Loop
  • OL — Operational Left DSC Or MDM
  • OLDB — On-Line Data Bank
  • OLDR — Quick Look Data Reference
  • OLF — Orbiter Landing Facility (now SLF)
  • OLIF — Orbiter Landing Instrumentation Facilities
  • OLOW — Orbiter Lift-off Weight
  • OLSA — Orbiter/LPS Signal Adapter
  • OLSP — Orbiter Logistics Support Plan
  • OM — Operational Mid DSC Or MDM
  • OM — Optical Master
  • OM — Orbital Maneuvering Engine
  • OM — Orbiter Main Engine
  • OM — Outer Marker (ILS)
  • OM — RS Operations And Maintenance Requirements Specification
  • OMA — Operations Maintenance Area
  • OMA — Orbiter Maintenance Area
  • OMB — Office Of Management And Budget
  • OMBUU — Orbiter Midbody Umbilical Unit
  • OMC — Orbiter Maintenance And Checkout
  • OMCF — Operations And Maintenance Control File
  • OMCF — Orbiter Maintenance And Checkout Facility
  • OMD — Operations And Maintenance Documentation
  • OMD — Orbiter Mating Device
  • OMDR — Operations And Maintenance Data Record
  • OMDRI — Operations And Maintainability Data Record
  • OME — Orbital Main Engine
  • OMET — Orbiter Mission Elapsed Time
  • OMEWG — Orbiter Maintenance Engineering Working Group
  • OMI — Operations And Maintenance Instruction
  • OMIS — Operational Management Information System
  • OMISS — Operation And Maintenance Instruction Summary Sheet(s)
  • OML — Orbiter Mold Line
  • OML — Outer Mold Line
  • OML — Outside Mold Line
  • OMMH — Orbiter Maintenance Man-Hours
  • OMNI — Omnidirectional
  • OMNI — Omni-Range
  • OMP — Operations And Maintenance Plan
  • OMPR — Operational Maintainability Problem Reporting
  • OMPT — Observed Mass Point Trajectory
  • OMR — Operations And Maintenance Requirements
  • OMR — Operations Management Room
  • OMR — Orbiter Management Review
  • OMRB — Operating Material Review Board
  • OMRC — Operational Maintenance Requirements Catalog
  • OMRF — Orbiter Modification And Refurbishment Facility
  • OMRP — Operations And Maintenance Requirements Plan
  • OMRSD — Document
  • OMRSD — O&M Requirements And Specifications Documentation
  • OMRSD — Operational Maintainability Reporting Systems Document
  • OMRSD — Operational Maintenance Requirements And Specification
  • OMS — Orbital Maneuvering Subsystem
  • OMS — Orbital Maneuvering System
  • OMSF — Office Of Manned Space Flight (now OSTS)
  • OMSP — Operational Maintenance Support Plan
  • OMU — Optical Measuring Unit
  • OMV — Oxygen Manual Valve
  • ONBD — Onboard
  • ONBT — Orbiter Neutral Buoyancy Trainer
  • OND — Operator Need Date
  • ONR — Office Of Naval Research
  • OOD — OrbiterOn-Dock
  • OODP — Out-of-Detent Pitch
  • OODR — Out-of-Detent Roll
  • OOMM — Organizational Operations And Maintenance Manual
  • OOP — Out Of Position
  • OOS — On-Orbit Station
  • OOS — Orbit-to-Orbit Shuttle
  • OOS — Orbit-to-Orbit Stage
  • OOSDP — On-Orbit Station Distribution Panel
  • OOT — Out Of Tolerance
  • OP — Open
  • OP — Operate

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