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.) dial size pressure gauges and dial thermometers for miscellaneous shipboard applications.

1.2 Gauge boards ordered under this specification are suitable for pressure gauges and dial thermometers with either turret or back flanged type cases and with either back or bottom connections (see Appendix X1).

1.3 Gauge mounting dimensions shall be in accordance with ANSI B 40.01

1.4 The values stated in SI units are to be regarded as the standard. The inch-pound values given in parentheses are for information only.

Note 1 - Gauge boards covered by this specification are those normally supplied by the shipyard as opposed to the shipyard's equipment subcontractor.