MIL-STD-2199 Coverings For Waterborne Main Propulsion Shafting On U.S. Naval Surface Ships And SubmarinesThis standard covers standard practices for the application of a four-layer shaft covering system on the body areas of waterborne main propulsion shafting. Material and application requirements are also provided for coatings that are to be applied to waterborne shaft flange assemblies.

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MIL-STD-2199A APPENDIX A

FIGURE A-9.  Mixing a kit of sealing/fairing compound.

c.    Apply the sealant with a squeegee to the rotating shaft.  Coverage shall include the bearing sleeve-end treatment and about 6 inches of shafting.  The sealant shall fair the shaft to the sleeve (see figure A-10).

SEALING/FAIRING COMPOUND

FIGURE A-10.  Schematic showing sealing/fairing compound (only the sleeve end area is covered).

d.    Use of a wide (approximately 12-inch) squeegee (or equivalent) is recommended to spread and distribute the sealant while the shaft rotates, as shown on figures A-11 and A-12.  The sleeve end is shown fair with the shaft on figure A-13.  The thickness in way of the bearing sleeve and shafting shall be approximately 20 mils (0.020 of an inch), except at the sleeve end.  At the sleeve end the thickness of the sealant shall be that necessary to fair the shaft to the sleeve.  Thus, the thickness at the sleeve end shall be approximately the thickness of the sleeve at the end plus

20 mils.

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