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Revision A
Term
Definition
TFFT
Turns from finger tight
Torque
The product of a force X lever arm length, usually measured in Newton-meters (Nm)
or foot-pounds (lbf
∙
ft)
Torque angle
A tightening procedure where fitting is assembled to a precondition (finger tight) and
then nut is turned farther a number of degrees to achieve its final position
Torque-tension
The relationship between assembly torque applied to a piece of hardware and axial
load it induces in bolt or screw
ULSD
Ultra-low sulphur diesel
Washer
A thin cylinder with a hole or slot located in the center that is to be used as a spacer,
load distribution element, or locking mechanism
Windrower
Power unit of a self-propelled header
WOT
Wide open throttle