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

PARAGRAPH                                                                                                                                                            PAGE APPENDIX A .............................................................................................................................................................10

A.1  SCOPE.................................................................................................................................................................10

A.1.1  Scope...........................................................................................................................................................10

A.1.2  General description .....................................................................................................................................10

A.2  APPLICABLE DOCUMENTS ...........................................................................................................................10

A.2.1  General........................................................................................................................................................10

A.2.2  Government documents ..............................................................................................................................10

A.2.2.1  Specifications, standards, and handbooks ..........................................................................................10

A.2.2.2  Other Government documents, drawings, and publications ...............................................................11

A.2.2.3  Non-Government publications ...........................................................................................................11

A.2.3  Order of precedence ....................................................................................................................................11

A.3  PROCEDURE......................................................................................................................................................11

A.3.1  Shaft assembly preparations........................................................................................................................11

A.3.1.1  Preparation of shaft body areas and interfacing sleeve end prep areas...............................................11

A.3.1.2  Preparation of waterborne shaft flange assemblies ............................................................................12

A.3.1.2.1  Shaft flanges enclosed within rotating coupling covers.............................................................12

A.3.1.2.2  Coated flanges normally exposed to seawater ...........................................................................13

A.3.1.3  Preparation of the shaft-to-sleeve end interfaces................................................................................13

A.3.1.3.1  Preserving the sleeve end prep area...........................................................................................13

A.3.1.3.2  Sleeve masking precautions.......................................................................................................13

A.3.2  Shaft covering system application...............................................................................................................14

A.3.2.1  First layer - primer application ..........................................................................................................14

A.3.2.2  Second layer - elastomeric coating application..................................................................................14

A.3.2.3  Third layer - sealing/fairing compound application...........................................................................18

A.3.2.4  Fourth layer - GRP application..........................................................................................................21

A.3.2.5  Cure....................................................................................................................................................23

A.3.2.6  Painting ..............................................................................................................................................23

A.3.3  Flange preservation.....................................................................................................................................24

A.3.3.1  Shaft flanges enclosed within rotating coupling covers .....................................................................24

A.3.3.2  Shaft flanges normally exposed to seawater.......................................................................................24

APPENDIX B..............................................................................................................................................................26

B.1  SCOPE.................................................................................................................................................................26

B.1.1  Scope...........................................................................................................................................................26

B.2  APPLICABLE DOCUMENTS............................................................................................................................26

B.2.1  General ........................................................................................................................................................26

B.2.2  Government documents...............................................................................................................................26

B.2.3  Order of precedence ....................................................................................................................................26

B.2.2.1  Other Government documents, drawings, and publications ...............................................................26

B.3  QUALITY CONTROL........................................................................................................................................26

B.3.1  Shaft covering inspections...........................................................................................................................27

B.3.1.1  Post application inspection and repair ................................................................................................27

B.3.1.1.1  Inspection...................................................................................................................................27

B.3.1.1.2  Corrective action........................................................................................................................27

B.3.1.2  Dry-dock inspection and repair ..........................................................................................................28

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