Model #631-16978

Voltmeter (NSN 6625-00-679-5882)

Special Features
Ruggedized; red line at 120 v, 208 v, 240 v, 416 v
Description

2.000 inches nominal overall length, steel material, paint surface treatment.

Circuit Current For Which Designed
Ac
Dielectric Withstanding Voltage In Volts
3000.0
Mounting Hole Diameter
0.150 inches
Scale Division Quantity
90 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
3.160 inches
Furnished Items And Quantity
Nut 5; lockwasher 5; seal 1
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Frequency Response Range
+0.060/+1.000 kilohertz
Frequency Response Range
+0.060 to 1.000 kilohertz
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
-2.0/+2.0 at full scale single indicator single range
Accuracy In Percent
-2.0 to 2.0 at full scale single indicator single range
Unable To Decode
Unable to decode or unable to decode
Meter Depth Behind Mounting Flange
1.200 inches
Meter Body Diameter Behind Mounting Flange
2.670 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/+450.0 volts, ac single indicator single range
Measurement Range
+0.0 to 450.0 volts, ac single indicator single range
Features Provided
Magnetic shield and zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Operating Voltage Rating In Volts
450.0 ac
Special Markings
On back, sealed do not open
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