| ACTUATION TYPE | BOURDON TUBE |
| ADJUSTABILITY | ADJUSTABLE |
| BOLT CIRCLE DIAMETER | 4.250 INCHES NOMINAL |
| CONNECTION TYPE | EXTERNAL |
| CONNECTION LOCATION | BOTTOM |
| CONNECTION QUANTITY | 1 |
| CONNECTION SIZE | 0.438-20 UNF |
| CONNECTOR TYPE VENT | NOT PROVIDED |
| DIAL SIZE | 3-1/2 IN. DIA |
| GRADUATION UNIT | 5.0 INCHES OF MERCURY |
| OVERALL DEPTH | 1.781 INCHES NOMINAL |
| OVERALL DIAMETER | 4.750 INCHES NOMINAL |
| MATERIAL | ALUMINUM CASE |
| MATERIAL | NICKEL ALLOY ACTUATING ELEMENT |
| MATERIAL | PLASTIC PROTECTIVE CRYSTAL |
| MOUNTING HOLE DIAMETER | 0.219 INCHES NOMINAL |
| MOUNTING HOLE QUANTITY | 3 |
| MOUNTING METHOD | STRAIGHT PIPE THREAD |
| SPECIAL FEATURES | 7/16-20 UNF 2A FLARELESS BITE-TYPE TUBE FITTING PER MIL-F-18866 FOR CONNECTION DATA |
| POINTER COLOR | BLACK |
| POINTER TYPE | INDICATING |
| SCALE ACCURACY | PORM 1 PCT OF SCALE RANGE |
| SCALE INSCRIPTION/BACKGROUND COLOR | WHITE BACKGROUND,BLACK GRADUATIONS AND MARKINGS |
| SCALE NAME | VACUUM |
| SCALE RANGE | +0.0 TO 30.0 INCHES OF MERCURY |
| SCALE SMALLEST INCREMENT | 1.0 INCHES OF MERCURY |
| SCALE TYPE | SINGLE |
| SPECIFICATION/STANDARD DATA | 81349-MIL-G-18997 GOVERNMENT SPECIFICATION |
| SURFACE TREATMENT | ENAMEL CASE |