Model: MA21

Ammeter

Properties:

Circuit Current For Which Designed
Ac and dc
Overall Length
1.875 inches
Overall Height
2.688 inches
Overall Width
3.967 inches
Scale Division Quantity
24 single indicator all ranges
Mounting Stud Length
0.641 inches
Distance Between Mounting Facility Centers
2.125 inches
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Two hole/stud
Dial Scale Marking Color
Black single indicator all ranges
Accuracy In Percent
-2.0/+2.0 at full scale single indicator all ranges
Unable To Decode
Unable to decode or unable to decode
Meter Depth Behind Mounting Flange
1.312 inches
Meter Body Diameter Behind Mounting Flange
2.125 inches
Movement Type
Moving magnet
Background Color
White single indicator all ranges
Pointer Color
Red single indicator all ranges
Power Source
External
Mounting Facility Type And Quantity
2 threaded stud
Scale Graduation Type
Linear single indicator all ranges
Measurement Range
-0.0/+2.0 amperes, rf single indicator 1st range
Measurement Range
-0.0/+10.0 amperes, rf single indicator 2nd range
Mounting Stud Diameter
0.187 inches
Circuit Attachment Method And Quantity
2 threaded stud
Material
Plastic acrylic
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Rectangular flush mtg
NSN
6625-01-185-7681
Part Number
MA21
Description
Ammeter
CAGE
57655

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 MA21 NSN 6625-01-185-7681

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

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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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