Model: A1387-428

Audio Level Meter

Properties:

Circuit Current For Which Designed
Ac
Overall Length
1.600 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
3.600 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
3.290 inches
Overall Height
3.940 inches
Overall Width
4.250 inches
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Four hole/stud rectangular/square
Accuracy In Percent
-2.0/+2.0 at full scale single indicator single range
Accuracy In Percent
-2.0 to 2.0 at full scale single indicator single range
Meter Depth Behind Mounting Flange
1.120 inches
Meter Body Diameter Behind Mounting Flange
3.250 inches
Movement Type
Moving coil, permanent magnet
Power Source
External
Mounting Facility Type And Quantity
4 flange
Measurement Range
+0.0/+100.0 percent modulation 2nd indicator single range
Measurement Range
-20.0/+3.0 decibels 1st indicator single range
Measurement Range
+0.0 to 100.0 percent modulation 2nd indicator single range
Measurement Range
-20.0 to 3.0 decibels 1st indicator single range
Features Provided
Zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 binding post
Material
Plastic
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Rectangular flush mtg
Fsc Application Data
Test set, elect. Equip.
NSN
6625-00-643-2776
Part Number
A1387-428
Description
Meter,audio Level
CAGE
58880

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 A1387-428 NSN 6625-00-643-2776

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:
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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