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

Null Meter

Model / MPN: 633-16276 | NSN: 6625-00-006-2967
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
6625-00-006-2967
Sold in multiples of
1 EA
DEMIL
NO
Circuit Current For Which Designed
Dc
Dielectric Withstanding Voltage In Volts
3000.0
Overall Length
2.500 inches
Mounting Hole Diameter
Between 0.143 inches and 0.157 inches
Overall Diameter
3.490 inches
Environmental Protection
Cold resistant and heat resistant and shock resistant and submersible and vibration resistant and watertight
Mounting Bolt Circle Diameter
3.160 inches
Furnished Items And Quantity
Nut 3; washer 3
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Sensitivity Rating
1.0 milliamperes
Dial Scale Marking Color
Black 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
Unable To Decode
Unable to decode or unable to decode
Meter Depth Behind Mounting Flange
1.460 inches
Meter Body Diameter Behind Mounting Flange
2.670 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator single range
Pointer Color
Black single indicator single range
Scale Marking
0; +
Scale Marking
-; 0; +
Mounting Facility Type And Quantity
3 unthreaded hole
Scale Graduation Type
Nonlinear single indicator single range
Features Provided
Luminous scale marking and magnetic shield and zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Special Markings
Green bands from m 660 to m 780 ua and from 620 to 820 ua from ctr scale
Material
Stainless steel
Nuclear Hardness Critical Feature
Nonhardened
Surface Treatment
Enamel semigloss
Special Test Features
Conforms to mil-m-10304/22, type mr34m1u1dcmar
Style Designator
C1 round flush mtg
Style Designator
Round flush mtg
Supplementary Features
2.25 kilohms of internal resistance
Fsc Application Data
Test set, elect. Equip.

Pricing and Availability

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633-16276 Cross Reference
  • 900339-1C
  • 345-054
  • 345-054