Model #631-16471A

Voltmeter (NSN 6625-00-673-5558)

Special Features
Ruggedized; may be used with an external multiplier for 115v reading
Description

1.974 inches nominal overall length, steel corrosion resisting material, enamel surface treatment.

Circuit Current For Which Designed
Dc
Dielectric Withstanding Voltage In Volts
3000.0
Mounting Hole Diameter
Between 0.143 inches and 0.157 inches
Scale Division Quantity
25 single indicator single range
Overall Diameter
3.500 inches
Environmental Protection
Airtight and dust resistant and fungus resistant and heat resistant and humidity resistant and shock resistant and vibration resistant and water resistant
Mounting Bolt Circle Diameter
Between 3.155 inches and 3.165 inches
Furnished Items And Quantity
Nut 3; lockwasher 3; seal 1
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Sensitivity Rating
1000.0 ohms per volt
Dial Scale Marking Color
Black single indicator single range and red single indicator single range
Dial Scale Marking Color
Black and red single indicator single range
Accuracy In Percent
-3.0/+3.0 at full scale single indicator single range
Accuracy In Percent
-3.0 to 3.0 at full scale single indicator single range
Unable To Decode
Unable to decode or unable to decode
Meter Depth Behind Mounting Flange
1.594 inches
Meter Body Diameter Behind Mounting Flange
2.675 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator single range
Pointer Color
Black single indicator single range
Power Source
External
Mounting Facility Type And Quantity
3 screw and 3 unthreaded hole
Scale Graduation Type
Linear single indicator single range
Measurement Range
+0.0/+75.0 volts, dc single indicator single range
Measurement Range
+0.0 to 75.0 volts, dc single indicator single range
Features Provided
Magnetic shield and zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 solder lug and 2 threaded stud
Special Markings
Red rectangle at 50 volts
Nuclear Hardness Critical Feature
Nonhardened
Special Test Features
Complies with mil-m-10304
Style Designator
Round flush mtg
Fsc Application Data
Test set, elect. Equip.
Description
Voltmeter
Cage Code
77221

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Updated: 11/24/2024