Model #291B270A10SPECIAL

Electrical frequency meter (NSN 6625-01-355-7282)

Special Features
Weapon systen essential
Description

7.218 inches nominal overall length, steel material.

Circuit Current For Which Designed
Dc
Center To Center Distance Between Mounting Facilities Parallel To Length
3.375 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
3.375 inches
Overall Height
4.422 inches
Overall Width
4.422 inches
Mounting Hole Diameter
0.312 inches
Scale Division Quantity
10 single indicator single range
Environmental Protection
Shock resistant and splash proof and vibration resistant
End Application
Arleigh burke class ddg, ticondaroga class c (47)oliver perry class ffg, seawolf class ssn, ohio class ssn, nimitz class cvn, los angeles class ssn, spruance class dd(963)deep submergence systems programs (dssp)
Furnished Items And Quantity
Nut 6; washer 12
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Four hole/stud rectangular/square
Dial Scale Marking Color
Black single indicator single range and green single indicator single range
Accuracy In Percent
-1.0/+1.0 at full scale single indicator single range
Meter Depth Behind Mounting Flange
3.750 inches
Meter Body Diameter Behind Mounting Flange
3.960 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
4 screw and 4 unthreaded hole
Scale Graduation Type
Linear single indicator single range
Measurement Range
+55.0/+65.0 hertz single indicator single range
Features Provided
Zero adjuster
Criticality Code Justification
Feat
Movement Suspension Method
Taut band
Circuit Attachment Method And Quantity
2 threaded stud
Special Markings
Green line at zero
Style Designator
Rectangular flush mtg
Fsc Application Data
Test set, elect. Equip.
Description
Meter,electrical Frequency
Cage Code
6Z382

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Updated: 05/04/2024