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Worldwide distributor of NSN parts and consumables located in the USA.

Null Meter

Model / MPN: 1521 CLASS 52 | NSN: 6625-00-103-0228
ITAR Registered seal

An electrically operated instrument having a zero point on its scale (usually located in the center thereof). It may not indicate units of electrical measurement. The value may be expressed by means of a pointer and calibrated dial or a digital readout display. When the indication shows zero, an electrical value of "zero" has been reached in the circuit. It is generally used in situations in which zero is the desired effect. Excludes ammeter, galvanometer; meter, arbitary scale; and voltmeter.

Product Details
NATO Stock Number
6625-00-103-0228
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Circuit Current For Which Designed
Dc
Overall Length
2.067 inches
Mounting Hole Diameter
0.125 inches
Scale Division Quantity
10 single indicator single range
Overall Diameter
2.695 inches
Mounting Bolt Circle Diameter
2.440 inches
Furnished Items And Quantity
Mtg hdw 3; term. Hdw z
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Sensitivity Rating
10.0 microamperes
Dial Scale Marking Color
Black single indicator single range and green single indicator single range
Dial Scale Marking Color
Black and green 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
Meter Depth Behind Mounting Flange
1.687 inches
Meter Body Diameter Behind Mounting Flange
2.210 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator single range
Pointer Color
Black single indicator single range
Scale Marking
Null; m 10; 0; 10
Mounting Facility Type And Quantity
3 unthreaded hole
Scale Graduation Type
Linear single indicator single range
Features Provided
Zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Special Markings
Green band porm 2 units from 0
Material
Steel
Nuclear Hardness Critical Feature
Nonhardened
Surface Treatment
Enamel semigloss
Style Designator
Round flush mtg
Fsc Application Data
Test set, elect. Equip.
1521 Series Parts

Pricing and Availability

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1521 CLASS 52 Cross Reference
  • G359644
  • MMI-11032
  • MMI-11032
  • G359644