Model: M221

Ammeter

Special Features:

Ruggedized

Properties:

Circuit Current For Which Designed
Dc
Overall Length
Between 2.240 inches and 2.340 inches
Mounting Hole Diameter
0.150 inches
Scale Division Quantity
100 single indicator all ranges
Overall Diameter
Between 3.490 inches and 3.510 inches
Environmental Protection
Shock resistant and vibration resistant
Mounting Bolt Circle Diameter
3.160 inches
Furnished Items And Quantity
Nut 3
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Sensitivity Rating
50.0 millivolts
Dial Scale Marking Color
Black single indicator all ranges
Accuracy In Percent
-1.0/+1.0 at full scale single indicator all ranges
Accuracy In Percent
-1.0 to 1.0 at full scale single indicator all ranges
Panel For Which Designed
Nonmagnetic
Meter Depth Behind Mounting Flange
Between 1.610 inches and 1.650 inches
Meter Body Diameter Behind Mounting Flange
Between 2.740 inches and 2.780 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator all ranges
Pointer Color
Black single indicator all ranges
Mounting Facility Type And Quantity
3 screw and 3 unthreaded hole
Scale Graduation Type
Linear single indicator all ranges
Measurement Range
+0.0/+100.0 amperes, dc single indicator 1st range+0.0/+500.0 amperes, dc single indicator 2nd range
Measurement Range
+0.0 to 100.0 amperes, dc single indicator 1st range+0.0 to 500.0 amperes, dc single indicator 2nd range
Circuit Construction Type
Nonelectronic
Features Provided
Zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 solder lug and 2 threaded stud
Material
Steel
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Round flush mtg
Fsc Application Data
Test set, elect. Equip.
NSN
6625-00-062-5187
Part Number
M221
Description
Ammeter
CAGE
54764

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 M221 NSN 6625-00-062-5187

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:
TG
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.3000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
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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