Electrical Frequency Meter

621-E385
(NSN) National Stock Number
6625-01-243-3604
Federal Supply Classification
6625 Electrical and Electronic Properties Measuring and Testing Instruments
Item Name Code
16454
Schedule B Code
9030908030
Summary

Ac circuit current for which designed, 3000.0 dielectric withstanding voltage in volts, 2.030 inches maximum overall length, 0.150 inches nominal mounting hole diameter, 100 single indicator single range scale division quantity, 60.0 hertz nominal frequency rating

DAC HCC DMIL RNCC
E - - 3
RNVC SADC MSDS RNAAC
2 - - TX
Identification

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.

INC FIIG Concept Condition
16454 A310A0 - 1
Specifications
Circuit Current For Which Designed
ac
Details The type of electrical circuit in which the item is designed to be used.
Dielectric Withstanding Voltage In Volts
3000.0
Details The maximum voltage the insulating materials of the item will withstand without resulting in disruptive discharge or deterioration,expressed in volts.
Overall Length
2.030 inches maximum
Details The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
Mounting Hole Diameter
0.150 inches nominal
Details The length of a straight line which passes through the center of a mounting hole,and terminates at the circumference.
Scale Division Quantity
100 single indicator single range
Details The number of scale divisions.
Frequency Rating
60.0 hertz nominal
Details The number of complete cyclic changes,per unit of time,for which an item is rated.
Overall Diameter
2.695 inches maximum
Details A measurement of the longest straight line across a circular cross-sectional plane.
Environmental Protection
cold resistant and heat resistant and humidity resistant and shock resistant and vibration resistant
Details The environmental elements or conditions that an item is designed or protected to resist or withstand satisfactorily.
Mounting Bolt Circle Diameter
2.440 inches nominal
Details The length of a straight line which passes through the center of a mounting bolt circle,and terminates at the circumference.
Furnished Items And Quantity
nut 7; lockwasher 5; transducer 1; seal 1
Details The name and number of those parts furnished with the item of supply that have not been specified elsewhere.
Indicator Type
dial w/pointer
Details Indicates the type of device used to register the condition(s).
Installation Design
panel
Details The installation for which the item is designed.
Mounting Arrangement Style
three hole/stud bolt circle
Details The style designation indicating the configuration that most nearly corresponds to the arrangement of the mounting.
Frequency Response Range
+55.000 to 65.000 hertz
Details The minimum and maximum frequencies to which the item will respond without exceeding its accuracy rating.
Dial Scale Marking Color
black single indicator single range
Details The hue or tint of the dial scale marking(s).
Accuracy In Percent
-0.5 to 0.5 at 1/2 scale single indicator single range
Details An indication of the accuracy of an item,expressed in percent.
Meter Depth Behind Mounting Flange
1.170 inches maximum
Details A measurement between the mounting flange and the extremity of the meter, indistinction from height.
Meter Body Diameter Behind Mounting Flange
2.150 inches maximum
Details The length of a straight line which passes through the center of the meter body behind the mounting flange, and terminates at the circumference.
Movement Type
moving coil, permanent magnet
Details Indicates the type of movement provided.
Background Color
white single indicator single range
Details The hue or tint of the background.
Pointer Color
black single indicator single range
Details The hue or tint of the pointer.
Power Source
external
Details The source of power which provides the energy required for the operation of the item.
Mounting Facility Type And Quantity
3 screw and 3 unthreaded hole
Details Indicates the type and number of facilities by which the item is mounted.
Scale Graduation Type
linear single indicator single range
Details Indicates the type of graduations provided on the scale.
Measurement Range
+55.0 to 65.0 hertz single indicator single range
Details The minimum to maximum value which the item is capable of measuring.
Features Provided
magnetic shield and zero adjuster
Details Those features,not otherwise specified,which may be required for proper functioning of the item.
Movement Suspension Method
jewel pivot base
Details The means employed to suspend the movement of the item.
Circuit Attachment Method And Quantity
2 threaded stud
Details The means provided for electrical connection to a circuit and the number of each type of connection.
Operating Voltage Rating In Volts
120.0 ac nominal
Details The value(s) of root mean square or direct current potential which must be applied to the item for operation,expressed in volts.
Phase
single
Details The number of alternating current phases.
Special Features
ruggedized
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Special Markings
on back,sealed do not open
Details Markings included on an item for the purpose of offering instructions or warnings or to indicate the purpose,function,or application of the item.excludes manufacturers part numbers,symbols,or the like.
Material
steel
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Nuclear Hardness Critical Feature
nonhardened
Details An indication of the nuclear hardness criticality of the item.
Surface Treatment
cadmium and chromate
Details The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
Special Test Features
conforms to mil-m-10304
Details Test conditions and ratings,or environmental and performance requirements that are different,more critical,or more specific than those specified in a governing test data document.
Style Designator
round flush mtg
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
Fsc Application Data
test set,elect. equip.
Details The justification for the assignment of a federal supply class /fsc/ to an item based on the classification of the next higher classifiable assembly.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
269-009 33005 E - 5 2 - ZZ
3451607-1 93346 A - 5 2 - TX
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
P A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
34540 - J -
RVC WCC TCC SHC
- 657 Z 9
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FAQs
Frequently asked questions for NSN 6625-01-243-3604
What is the NIIN of the NSN 6625-01-243-3604?
The National Item Identification Number (NIIN) of the NSN 6625-01-243-3604 is 01-243-3604
When the NSN 6625-01-243-3604 was assigned to the Federal Catalog?
It was assigned 38 years ago, on Fri, Oct 24, 1986
Does the NSN 6625-01-243-3604 contain any precious metals?
Does not contain precious metal
Does the NSN 6625-01-243-3604 contain any hazardous material?
No information in HMIRS

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