Model #413A-81A

Null meter (NSN 6625-00-954-6410)

Special Features
Ruggedized
Description

1.877 inches maximum overall length, plastic material, paint surface treatment.

Circuit Current For Which Designed
Dc
Dielectric Withstanding Voltage In Volts
3000.0
Center To Center Distance Between Mounting Facilities Parallel To Length
5.228 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
2.977 inches
Overall Height
4.648 inches
Overall Width
5.758 inches
Scale Division Quantity
100 single indicator 1st range
Scale Division Quantity
60 single indicator 2nd range
Mounting Stud Length
0.497 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
Furnished Items And Quantity
Nut 6; lockwasher 6; seal 1
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Four hole/stud rectangular/square
Sensitivity Rating
3.0 volts
Dial Scale Marking Color
Black single indicator all ranges
Accuracy In Percent
-2.0/+2.0 at full scale single indicator all ranges
Meter Depth Behind Mounting Flange
1.205 inches
Meter Body Diameter Behind Mounting Flange
2.793 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator all ranges
Pointer Color
Red single indicator all ranges
Scale Marking
Top scale, 1.0; .8; .6; .4; .2; 0; .2; .4; .6; .8; 1.0; bottom scale, 3; 2; 1; 0; 1; 2; 3
Mounting Facility Type And Quantity
4 threaded stud
Scale Graduation Type
Linear single indicator all ranges
Mounting Stud Diameter
0.136 inches
Features Provided
Magnetic shield and mirror scale and zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Special Markings
On back, sealed do not open; on front, -; +
Nuclear Hardness Critical Feature
Nonhardened
Special Test Features
Complies with mil-m-10304
Style Designator
Rectangular flush mtg
Fsc Application Data
Test set, elect. Equip.
Description
Meter,null
Cage Code
1LQK8

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Updated: 12/13/2024