Centrifugal Fan

7903447-00

7903447-00
(NSN) National Stock Number
4140-00-004-0540
Federal Supply Classification
4140 Fans, Air Circulators and Blower Equipment
Item Name Code
04254
Schedule B Code
8414599080
Summary

Single speed speed adjustments, 6.390 inches minimum and 6.810 inches maximum width, 5.485 inches minimum and 5.515 inches maximum diameter, 6.560 inches minimum and 6.680 inches maximum length, -10.0 deg celsius and 50.0 deg celsius ambient temp at full rated power, 3100.0 operating speed at rated capacity in rpm

DAC HCC DMIL RNCC
5 - - 5
RNVC SADC MSDS RNAAC
2 - - 48
Identification

A nonpositive displacement mechanical device having a centrifugal fan impeller inclosed within a housing. It is designed to move air or gas over a wide range of volumes and pressures. The air or gas is drawn in axially and discharged radially or drawn in radially and discharged axially by centrifugal force through an outlet in the housing.

INC FIIG Concept Condition
04254 A087A0 - 2
Specifications
Speed Adjustments
single speed
Details The different speeds at which the item may be operated.
Width
6.390 inches minimum and 6.810 inches maximum
Details A measurement taken at right angles to the length of an item,in distinction from thickness.
Diameter
5.485 inches minimum and 5.515 inches maximum
Details The length of a straight line which passes through the center of a circular figure or body,and terminates at the circumference.
Length
6.560 inches minimum and 6.680 inches maximum
Details A measurement of the longest dimension of any object,in distinction from width.
Ambient Temp At Full Rated Power
-10.0 deg celsius and 50.0 deg celsius
Details The temperature of the medium surrounding an item at which it can be operated continuously at full rated power.
Operating Speed At Rated Capacity In Rpm
3100.0
Details The speed of the drive shaft required to produce the rated capacity of an item,expressed in revolutions per minute.
End Item Identification
automated radar terminal system 3a (arts-3a)
Details The national stock number or the identification information of the end equipment for which the item is a part.
Electrical Connection Type
wire lead
Details Indicates the type of electrical connection included on the item.
Outlet Inside Width
1.120 inches minimum and 1.560 inches maximum
Details None.
Outlet Inside Height
4.125 inches nominal
Details None.
Static Pressure At Specified Air Flow Rate
0.0 inches of water
Details The static pressure measured at the air flow rate specified.
Drive Type
direct
Details Indicates the type of drive for turning,rotating,or positioning the mechanism.
Prime Mover Type
electric motor
Details Indicates the type of prime mover included with the unit.
Inclosure Type
partially inclosed
Details Indicates the type of inclosure provided to coat,cover,protect,or encase the item.
Rotation Direction For Which Designed
counterclockwise
Details The direction of rotation for which the item is designed.
Features Provided
nonsparking
Details Those features,not otherwise specified,which may be required for proper functioning of the item.
Air Flow Rate
210.0 cubic feet per minute nominal
Details The rated capacity of air flow moved through the item.
Outlet Location
top
Details Indicates the location of the outlet on the item.
Voltage In Volts And Current Type
115.0 ac
Details The total electrical voltage,expressed in volts,and the type of current whether alternating or direct.
Prime Mover Drive Shaft Bearing Type
ball
Details Indicates the type of bearing/s/ provided on the prime mover drive shaft.
Discharge Direction
vertical up
Details The direction in which the item discharges during operation.
Phase
single
Details The number of alternating current phases.
Special Features
reference data: a1a1b1, px12093, ti6190.1, technical manual, arts111a, data processing, aug 1978, pg6-20
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.
Height
5.820 inches minimum and 5.880 inches maximum
Details A measurement from the bottom to the top of an object,in distinction from depth.
Material
aluminum housing
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Quantity
1
Details A numeric value which represents a positive whole value without regard to any unit of measure.
Surface Treatment
anodize housing outside
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.
Surface Treatment
anodize housing inside
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.
Style Designator
fixed, rectangular outlets
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
A0-74588 82877 5 - 3 2 - 48
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
- - - -
RVC WCC TCC SHC
- - - -

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Manufacturer
LOCKHEED MARTIN CORP DBA LOCKHEED MARTIN DIV MST - EAGAN
CAGE: 90536
MANASSAS , VA , 20110-4166
UNITED STATES
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FAQs
Frequently asked questions for NSN 4140-00-004-0540
What is the NIIN of the NSN 4140-00-004-0540?
The National Item Identification Number (NIIN) of the NSN 4140-00-004-0540 is 00-004-0540
When the NSN 4140-00-004-0540 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Sat, May 27, 1972
Does the NSN 4140-00-004-0540 contain any precious metals?
Type/content is unknown
Does the NSN 4140-00-004-0540 contain any hazardous material?
No data in HMIRS

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