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When should the nut lock shown in the illustration, be replaced with standard lock washers or other similar devices used in the industry? GS-0156
A) Replacement with another nut locking device is unnecessary.
B) Flat locks are no longer used in the marine industry and should be replaced during the next maintenance procedure.
C) Bellevue washers are the ideal substitute for these locking devices provided a thread locking adhesive is used.
D) When torque values of 25 foot pounds or greater are being used, replacement with spring washers is mandatory.
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Illustration GS-0156

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