The shaft sleeve for the pump illustrated is identified by the item numbered as __________. GS-0143
Official USCG Answer & Rule Citation
Correct Answer: Option C — 14
Item 14 represents the shaft sleeve, a replaceable component designed to protect the pump shaft from wear caused by the packing or mechanical seal. In standard centrifugal pump construction, this sleeve is positioned over the shaft within the stuffing box area to facilitate maintenance and extend shaft service life.
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