Model: 421-7423

Voltmeter

Properties:

Overall Length
11.000 inches
Overall Height
6.500 inches
Overall Width
5.125 inches
Scale Division Quantity
12 single indicator single range
Frequency Rating
Between 50.000 hertz and 60.000 hertz
End Application
For test and alignment of lf receiver, an-urc-117 ground wave emergency network (gwen)
Dial Scale Marking Color
Black single indicator single range
Accuracy In Percent
-1.0/+1.0 at full scale single indicator all ranges
Movement Type
Moving iron vane
Background Color
White single indicator single range
Power Source
External
Measurement Range
+0.0/+60.0 decibels single indicator single range
Scale Selection Method
Switch
Features Provided
Electrical overload protection and zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 connector, receptacle
Operating Voltage Rating In Volts
115.0 ac and 230.0 ac
Phase
Single
Functional Classification
Aa-1.1
Functional Description
True root-meansquare voltmeter used to maintain an/arn-52 and an/asn-64
Entry Date
71-01-15
Reference Data And Literature
Tb9-6625-0011-50, tb11-6625-1227-15
Relationship To Similar Equipment
Interchangeable w/6625010123255 and 6625004423585
Surface Treatment
Enamel
Style Designator
Rectangular or square
Type/model Designation
An/usm-224
NSN
6625-00-727-4706
Part Number
421-7423
Description
Voltmeter
CAGE
A486G

An instrument which measures electrical potential and is calibrated in volts or any multiple and/or submultiple thereof. The value may be expressed by means of a pointer and calibrated dial or a digital readout display.

Part 421-7423 NSN 6625-00-727-4706

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16449
FIIG:
A310A0
Concept No.:
App. Key:
A
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:
A
ESD:
A
MMAC:
RH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
12.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
03
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
136740
UFC:
68820
LTL:
100.0
LCL:
100.0
WCC:
657
TCC:
Z
SHC:
9
ACC:
Equipment for Aircraft

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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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