SRA—Selected Restricted Availability.
STAKE—To spread the head of a fastener, while in
place, with a center punch or similar tool to prevent
rotation of the fastener.
STELLITE—A very hard metal composition used for
facings.
STRAIN—That force within a part that is caused by an
external pressure.
STRIP SIDE—The side of the launching-engine
cylinders on which the sealing strip is located.
SUPERHEATED STEAM—Steam that is hotter than
the boiling point of water and contains no moisture.
SWAGE—To make a binding between a fitting and
wire rope by hammering the fitting until its
diameter over the wire rope is reduced so that the
fitting holds the wire rope tightly.
SWLIN—Ship's Work Line Item Number.
TAV—Technical Availability.
TCP—Tool Control Program.
TD—Technical Directive.
TFBR—Technical Feedback Report.
THERMAL—Relating to or caused by heat.
3-M—Maintenance and Material Management.
TMDER—Technical Manual Deficiency/Evaluation
Report.
TOLERANCE—The amount of variation permitted in
the size of a part.
TORQUE—A force applied to a part, using a twisting
or rotating motion.
TPDR—Technical Publication Deficiency Report.
TPL—Technical Publications Library.
TYCOM—Type Commander.
UIC—Unit Identification Code.
VENT—To remove air or other gas or vapor from a
system.
VIDS—Visual Information Display System.
V-RING PACKING—Chevron Packing.
VISCOSITY—Measure of resistance of a fluid to
flow. (Thick liquids, such as syrup or glue, would
have a higher viscosity than water.)
VLA—Visual Landing Aid.
VOLATILE—Passing off readily in the form of a
vapor.
VR—Voyage Repair.
VRT—Voyage Repair Team.
W/C—Work Center.
WARNING—An emphatic notice requiring correct
operating or maintenance procedures and the
ensuring of safe conditions to prevent injury or loss
of life.
WARPING—Bending or twisting out of shape.
WDC—Work Definition Conference.
WET STEAM—Steam mixed with free water par-
ticles.
AI-5
