scope:

FOREWORD

This standard covers requirements for basic submarine piping system components. It is not the intension herein to include every conceivable component, value or fitting the might be used in a submarine piping system. Special items or components not covered in this standard, should be as matter of approval by the cognizant Supervisor of Shipbuilding, Naval Shipyard, Naval Ship Systems Command or the Naval Ship Engineering Center.

This issue of MIL-STD-438(SHIPS) is bound so that any category and groups can be removed and replaced with revised issues of that category. It is the intention of the Naval Ship Engineering Center to make changes to individual categories and groups as required, rather than issue a complete revision of the standard. These changes will be issued as notices and will be numbered consecutively.

This standard includes a "List of categories" with the latest date of issue for each category. When a category is modified, the "List of categories" will also be modified and will be forwarded for insertion in the users copy of the standard.

All superseded categories and "List of categories" should be kept. In this manner, when users are applying the standard to applications which may predate any of the latest category issues, all of the applicable issues will be available.