Model: 491-312

Ammeter

Properties:

Circuit Current For Which Designed
Ac
Center To Center Distance Between Mounting Facilities Parallel To Length
3.125 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
3.375 inches
Overall Height
3.750 inches
Overall Width
4.000 inches
Installation Design
Panel
Mounting Arrangement Style
Four hole/stud rectangular/square
Dial Scale Marking Color
Black single indicator single range
Accuracy In Percent
-1.0/+1.0 at full scale single indicator single range
Meter Depth Behind Mounting Flange
1.500 inches
Meter Body Diameter Behind Mounting Flange
3.500 inches
Movement Type
Moving iron vane
Background Color
White single indicator single range
Mounting Facility Type And Quantity
4 threaded stud
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Material
Plastic
Style Designator
Rectangular flush mtg
NSN
6625-00-989-9927
Part Number
491-312
Description
Ammeter
CAGE
28569

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 491-312 NSN 6625-00-989-9927

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:
0.9000lbs
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:
100.0
LCL:
--
WCC:
657
TCC:
Z
SHC:
Q
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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