Model: 1247A

Audio Level Meter

Properties:

Circuit Current For Which Designed
Ac
Overall Length
2.240 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
1.875 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
1.875 inches
Overall Height
2.460 inches
Overall Width
2.460 inches
Scale Division Quantity
9 single indicator 1st range
Mounting Stud Length
0.540 inches
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Four hole/stud rectangular/square
Dial Scale Marking Color
Black single indicator all ranges and red single indicator all ranges
Accuracy In Percent
-3.0/+3.0 at full scale single indicator all ranges
Meter Depth Behind Mounting Flange
1.760 inches
Meter Body Diameter Behind Mounting Flange
2.170 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
4 threaded stud
Scale Graduation Type
Linear single indicator 1st range
Scale Graduation Type
Nonlinear single indicator 2nd range
Measurement Range
+0.0/+100.0 percent modulation single indicator 1st range
Measurement Range
-20.0/+3.0 voice units single indicator 2nd range
Mounting Stud Diameter
0.112 inches
Scale Selection Method
Terminal
Features Provided
Magnetic shield and zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Special Markings
Red band from 0 to 3vu
Material
Plastic
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Rectangular flush mtg
Fsc Application Data
Test set, elect. Equip.
NSN
6625-00-901-0014
Part Number
1247A
Description
Meter,audio Level
CAGE
55026

An instrument which measures the ratio of electrical power with reference to a predetermined value and is calibrated in units of sound intensity, usually decibels. The value may be expressed by means of a pointer and calibrated dial or a digital readout display. if other than audio frequency ranges, see meter, noise level.

Part 1247A NSN 6625-00-901-0014

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16456
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:
--
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:
061700
UFC:
34580
LTL:
RATING VARIABLE
LCL:
--
WCC:
658
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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