Model: 451-52A

Electrical Frequency Meter

Properties:

Circuit Current For Which Designed
Dc
Overall Length
2.340 inches
Mounting Hole Diameter
0.150 inches
Scale Division Quantity
100 single indicator single range
Overall Diameter
3.510 inches
Mounting Bolt Circle Diameter
3.160 inches
Furnished Items And Quantity
Screws 3; lock washers 3; hex nuts 3
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Dial Scale Marking Color
Black single indicator single range
Accuracy In Percent
-0.25/+0.25 at 1/2 scale single indicator single range
Accuracy In Percent
-0.25 to 0.25 at 1/2 scale single indicator single range
Meter Depth Behind Mounting Flange
1.650 inches
Meter Body Diameter Behind Mounting Flange
2.780 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator single range
Pointer Color
Black single indicator single range
Power Source
External
Mounting Facility Type And Quantity
3 unthreaded hole
Scale Graduation Type
Linear single indicator single range
Measurement Range
+350.0/+450.0 hertz single indicator single range
Measurement Range
+350.0 to 450.0 hertz single indicator single range
Scale Selection Method
Terminal
Features Provided
Zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 solderless lug
Material
Aluminum or steel
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Round flush mtg
Test Data Document
26512-1128scsea723-1 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Fsc Application Data
Test set, elect. Equip.
NSN
6625-00-405-5215
Part Number
451-52A
Description
Meter,electrical Frequency
CAGE
15309

An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in hertz (cycles per second or cps). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see calibrator, frequency; and wavementer. excludes: counter electronic digital.

Part 451-52A NSN 6625-00-405-5215

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16454
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:
0.5000lbs
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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