Model #31FHXXRUG

Electrical frequency meter (NSN 6625-00-841-6641)

Special Features
Reeds have high q characteristics
Description

2.944 inches minimum and 3.004 inches maximum overall length, plastic phenol-formaldehyde material, enamel surface treatment.

Circuit Current For Which Designed
Ac
Dielectric Withstanding Voltage In Volts
3000.0
Mounting Hole Diameter
0.150 inches
Overall Diameter
Between 3.480 inches and 3.520 inches
Environmental Protection
Waterproof
Mounting Bolt Circle Diameter
Between 3.150 inches and 3.170 inches
Furnished Items And Quantity
Nut 3; washer 3
Indicator Type
Vibrating reed
Installation Design
Panel
Register Quantity
1
Mounting Arrangement Style
Three hole/stud bolt circle
Resonant Reed Quantity
5
Meter Depth Behind Mounting Flange
Between 2.230 inches and 2.270 inches
Meter Body Diameter Behind Mounting Flange
Between 2.670 inches and 2.710 inches
Movement Type
Vibrating reed
Background Color
White single indicator single range
Power Source
External
Mounting Facility Type And Quantity
3 screw and 3 unthreaded hole
Measurement Range
+58.0/+62.0 hertz single indicator single range
Circuit Attachment Method And Quantity
2 solder lug
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Round flush mtg
Supplementary Features
Temp compensations not required
Fsc Application Data
Test set, elect. Equip.
Description
Meter,electrical Frequency
Cage Code
31356

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Updated: 06/16/2024