Model: 621-E385

Electrical Frequency Meter

Special Features:

Ruggedized

Properties:

Circuit Current For Which Designed
Ac
Dielectric Withstanding Voltage In Volts
3000.0
Overall Length
2.030 inches
Mounting Hole Diameter
0.150 inches
Scale Division Quantity
100 single indicator single range
Frequency Rating
60.0 hertz
Overall Diameter
2.695 inches
Environmental Protection
Cold resistant and heat resistant and humidity resistant and shock resistant and vibration resistant
Mounting Bolt Circle Diameter
2.440 inches
Furnished Items And Quantity
Nut 7; lockwasher 5; transducer 1; seal 1
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Frequency Response Range
+55.000/+65.000 hertz
Dial Scale Marking Color
Black single indicator single range
Accuracy In Percent
-0.5/+0.5 at 1/2 scale single indicator single range
Unable To Decode
Unable to decode or unable to decode
Meter Depth Behind Mounting Flange
1.170 inches
Meter Body Diameter Behind Mounting Flange
2.150 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 screw and 3 unthreaded hole
Scale Graduation Type
Linear single indicator single range
Measurement Range
+55.0/+65.0 hertz single indicator single range
Features Provided
Magnetic shield and zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Operating Voltage Rating In Volts
120.0 ac
Phase
Single
Special Markings
On back, sealed do not open
Material
Steel
Nuclear Hardness Critical Feature
Nonhardened
Surface Treatment
Cadmium and chromate
Special Test Features
Conforms to mil-m-10304
Style Designator
Round flush mtg
Fsc Application Data
Test set, elect. Equip.
NSN
6625-01-243-3604
Part Number
621-E385
Description
Meter,electrical Frequency
CAGE
77221

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 621-E385 NSN 6625-01-243-3604

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:
TG
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.8000lbs
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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