1.1 This specification covers modular gauge boards for mounting 89-mm (3½ -in.), 114-mm (4½-in.), 152-mm (6-in.), and 216-mm (8½ -in This specification covers modular gage boards for mounting dial pressure gages and dial thermometers for miscellaneous shipboard applications. Gage boards under this specification are suitable for pressure gages and dial thermometers with either turret