Model: 321HR

Ammeter

Properties:

Circuit Current For Which Designed
Dc
Dielectric Withstanding Voltage In Volts
3000.0
Overall Length
2.650 inches
Mounting Hole Diameter
0.125 inches
Scale Division Quantity
50 single indicator single range
Overall Diameter
2.695 inches
Environmental Protection
Dust resistant
Mounting Bolt Circle Diameter
2.440 inches
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Sensitivity Rating
150.0 millivolts
Dial Scale Marking Color
White single indicator single range
Accuracy In Percent
-2.0/+2.0 at full scale single indicator single range
Meter Depth Behind Mounting Flange
1.600 inches
Meter Body Diameter Behind Mounting Flange
2.210 inches
Movement Type
Moving coil, permanent magnet
Background Color
Black single indicator single range
Pointer Color
White single indicator single range
Power Source
External
Mounting Facility Type And Quantity
3 unthreaded hole
Scale Graduation Type
Linear single indicator single range
Measurement Range
-100.0/+100.0 microamperes, dc single indicator single range
Scale Selection Method
Terminal
Features Provided
Zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Round flush mtg
Test Data Document
81349-mil-m-10304 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.).
Specification Data
81349-mil-m-10304/5 government specification
Fsc Application Data
Test set, electronic equipment
NSN
6625-00-811-4424
Part Number
321HR
Description
Ammeter
CAGE
60741

An instrument which measures electric current and is calibrated and marked in amperes 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. For current detecting type of devices, see galvanometer.

Part 321HR NSN 6625-00-811-4424

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16450
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:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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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