4 1/2" Compound Pressure- Vacuum Gauge 30 - 0 - 100 NSN: 6685-00-869-7290

OVERALL DIAMETER

5.750 INCHES NOMINAL

OVERALL DEPTH

2.500 INCHES NOMINAL

SCALE TYPE

MULTIPLE

SCALE SMALLEST INCREMENT

5.0 INCHES AND 1.0 POUNDS PER SQUARE INCH

SCALE RANGE

+0.0/+30.0 INCHES OF MERCURY AND +0.0/+100.0 POUNDS PRESSURE PER SQUARE INCH

SCALE NAME

PRESSURE-VACUUM

SCALE NAME FOR WHICH POINTER IS DESIGNED

PRESSURE-VACUUM

SCALE INSCRIPTION/BACKGROUND COLOR

WHITE FIGURES ON BLACK BACKGROUND

SCALE MARKING

FO

SCALE ACCURACY

1 PCT ABOVE 5 PCT OF RANGE SPAN

PROTECTIVE CRYSTAL MATERIAL

PLASTIC

POINTER TYPE

INDICATING AND REFERENCE

POINTER COLOR

RED AND WHITE

MOUNTING METHOD

FLUSH PANEL

MOUNTING HOLE QUANTITY

3

MOUNTING HOLE DIAMETER

0.218 INCHES NOMINAL

GRADUATION UNIT

30.0 INCHES AND 10.0 POUNDS PER SQUARE INCH

DIAL SIZE

4-1/2 IN. DIA

CONNECTION TYPE

EXTERNAL

CONNECTOR TYPE VENT

NOT PROVIDED

CONNECTION SIZE

0.250 IN. TUBE

CONNECTION QUANTITY

1

CONNECTION LOCATION

BACK

CASE SURFACE TREATMENT

ENAMEL

CASE MATERIAL

ALUMINUM

BOLT CIRCLE DIAMETER

5.375 INCHES NOMINAL

ADJUSTABILITY

ADJUSTABLE

ACTUATION TYPE

SINGLE BOURDON TUBE

ACTUATING ELEMENT MATERIAL

NICKEL-COPPER ALLOY

ACCESSORY COMPONENTS AND QUANTITY

NO ACCESSORIES

END ITEM IDENTIFICATION

POSEIDON MATERIAL; NUCLEAR REACTORS PROGRAM