Model #390-10907

Electrical frequency meter (NSN 6625-00-073-0048)

Special Features
Ruggedized
Description

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

Circuit Current For Which Designed
Ac
Mounting Hole Diameter
0.150 inches
Overall Diameter
3.474 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
3.188 inches
Furnished Items And Quantity
Nut 3; lockwasher 3; seal
Indicator Type
Vibrating reed
Installation Design
Panel
Register Quantity
2
Mounting Arrangement Style
Three hole/stud bolt circle
Frequency Response Range
+58.000/+62.000 hertz
Frequency Response Range
+58.000 to 62.000 hertz
Dial Scale Marking Color
White single indicator single range
Resonant Reed Quantity
5
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
Meter Depth Behind Mounting Flange
2.433 inches
Meter Body Diameter Behind Mounting Flange
2.750 inches
Movement Type
Vibrating reed
Background Color
Black 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
Measurement Range
+58.0 to 62.0 hertz single indicator single range
Scale Selection Method
Terminal
Features Provided
Shatterproof glass
Circuit Attachment Method And Quantity
2 solder lug
Special Markings
Stamp 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
Meter,electrical Frequency
Cage Code
77221

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Updated: 11/23/2024