Model: 1844

Null Meter

Properties:

Circuit Current For Which Designed
Ac and dc
Overall Length
1.880 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
4.000 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
3.560 inches
Overall Height
4.150 inches
Overall Width
4.600 inches
Mounting Hole Diameter
0.125 inches
Scale Division Quantity
1 single indicator single range
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
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
1.180 inches
Meter Body Diameter Behind Mounting Flange
2.790 inches
Movement Type
Moving coil, permanent magnet and moving iron vane
Background Color
White single indicator single range
Pointer Color
Black single indicator single range
Scale Marking
Zero center line only mark
Mounting Facility Type And Quantity
4 unthreaded hole
Scale Graduation Type
Linear single indicator single range
Movement Suspension Method
Taut band
Circuit Attachment Method And Quantity
2 threaded stud
Special Markings
Polarity
Material
Plastic phenolic
Nuclear Hardness Critical Feature
Nonhardened
Surface Treatment
Enamel
Style Designator
Rectangular flush mtg
Test Data Document
85936-1844 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
NSN
6625-00-431-9166
Part Number
1844
Description
Meter,null
CAGE
89536

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.

Part 1844 NSN 6625-00-431-9166

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
61382
FIIG:
A310A0
Concept No.:
App. Key:
C
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
TG
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
136740
UFC:
68820
LTL:
RATING VARIABLE
LCL:
--
WCC:
657
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 9030908030
  • SITC: 87479
  • End Use: Measuring, testing, control instruments
  • NAICS: 334515
  • USDA: 1

Freight Class: Parts and accessories of articles of schedule b subheading 9030.39

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