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FORD ESS-M1A171-B
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FORD ESS-M1A171-B 1996 Edition, September 1972 MATERIAL AND PERFORMANCE REQUIREMENTS FOR PREVAILING TORQUE NUTS *** TO BE USED WITH FORD WSS-M99P1111-A***
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Description / Abstract:
This standard establishes the general dimensional material and
performance requirements for cold or hot formed coarse thread
prevailing-torque type steel hexagon nuts.
DEFINITION.
A prevailing-torque type nut is a nut which is frictionally resistant to rotation due to a self-contained prevailing-torque feature, and not because of a compressive load developed against the bearing surface of the nut.
DEFINITION.
A prevailing-torque type nut is a nut which is frictionally resistant to rotation due to a self-contained prevailing-torque feature, and not because of a compressive load developed against the bearing surface of the nut.