Model: 521-17428A

Null Meter

Special Features:

Ruggedized

Properties:

Circuit Current For Which Designed
Dc
Dielectric Withstanding Voltage In Volts
3000.0
Overall Length
2.166 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
2.250 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
2.062 inches
Overall Height
2.500 inches
Overall Width
2.690 inches
Scale Division Quantity
21 single indicator single range
Mounting Stud Length
0.380 inches
Furnished Items And Quantity
Mtg hardware 4, term. Hardware 2
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
Meter Depth Behind Mounting Flange
0.960 inches
Meter Body Diameter Behind Mounting Flange
2.150 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator single range
Pointer Color
Black single indicator single range
Scale Marking
Minus 50.0 to plus 50.0
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
Material
Steel
Nuclear Hardness Critical Feature
Nonhardened
Surface Treatment
Paint
Style Designator
Rectangular flush mtg
NSN
6625-01-167-3465
Part Number
521-17428A
Description
Meter,null
CAGE
77221

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 521-17428A NSN 6625-01-167-3465

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:
0.5000lbs
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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