GALLING—Tearing away of a metal surface by
friction.
HERTZ—Cycles per second.
HMR—Hazardous Material Report.
HONE—To grind with an abrasive stone to remove
surface imperfections.
HUD—Heads-Up Display.
HYDRAULIC—That which is operated or moved by
the use of pressurized fluid.
HYDROSTATIC TEST—A test to determine whether
a part can withstand certain hydraulic pressures
without deforming or leaking.
I-LEVEL—Intermediate level.
IC—Interior Communications.
ICCS—Integrated Catapult Control Station.
ICP—Inventory Control Point.
IEM—Inactive Equipment Maintenance.
ILARTS—Integrated Launch and Recovery Television
Surveillance System.
IMA—Intermediate Maintenance Activity.
INSURV—Inspection and survey.
IPB—Illustrated Parts Breakdown.
IRAC—Interim Rapid Action Change.
JBD—Jet Blast Deflector.
JCN—Job Control Number.
JSN—Job Sequence Number.
LAGGING—The material used to insulate steam
pipes or boilers to prevent the loss of heat by
radiation.
LANG LAY—The lay in the strands and the lay in the
rope are in the same direction.
LAY—That length of rope in which one strand makes
one complete revolution about the core.
LOEP—List of Effective Pages.
MC—Maintenance Control.
MAF—Maintenance Action Form.
MAGNETIC
PARTICLE
INSPECTION—A
nondestructive method of inspecting areas on or
near the surface of iron or steel.
The part is
magnetized and then sprinkled with iron powder to
locate discontinuities, such as hairline cracks.
MALFUNCTION—Any failure of a system or
component that prevents normal operation of the
catapult.
MCRL—Master Cross Reference List.
MDS—Maintenance Data System.
MEGGER—An instrument used for checking the
insulation of electrical cables.
MEGOHM—A unit of electrical resistance equal to a
million ohms.
METCAL—Meteorology and Calibration (program).
MICROINCH—A unit of measurement equal to a
millionth of an inch.
MIOCROMETER—A device used for measuring
minute distances.
MILSTRIP—Military Standard Requisition and Issue
Procedures.
MIP—Maintenance Index Page.
MISALINEMENT—The condition of not being
along a fixed straight line; cocked to one side with
respect to other parts.
MOVLAS—Manually Operated Visual Landing Aid
System.
MR—Maintenance Requirement.
MRC—Maintenance Requirement Card.
MRIL—Master Repairable Item List.
MS—Maintenance Support.
NATTC—Naval Air Technical Training Center.
NATO—North Atlantic Treaty Organization.
NAVAIRWARCEN—Naval Air Warfare Center.
NAVSHIPYD—Naval Shipyard.
NAVSUP—Naval Supply System Command.
NDI—Non-destructive inspection.
NECKING-DOWN—A reduction in diameter, as in a
bolt or stud, caused by wear from vibration of
another part.
NGL—Nose Gear Launch.
NPC—Naval Personnel Command.
AI-3
