4C012A

View detailed technical data, stock status, and sourcing information for: 4C012A

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4C012A
Federal Supply Group
Refrigeration, Air Conditioning, and Air Circulating Equipment
National Stock Number
4140-00-254-7257
Item Name Code
04254
Assigment Date
07/23/1969 (57 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

40.0 celsius ambient temp at full rated power, 4.402 inches nominal length, single speed speed adjustments, 3340.0 operating speed at rated capacity in rpm, 2.094 inches nominal width

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Speed Adjustments
single speed
Width
2.094 inches nominal
Length
4.402 inches nominal
Ambient Temp At Full Rated Power
40.0 celsius
Operating Speed At Rated Capacity In Rpm
3340.0
Electrical Connection Type
wire lead
Outlet Inside Width
2.031 inches nominal
Outlet Inside Height
1.688 inches nominal
Static Pressure At Specified Air Flow Rate
0.0 inches of water
Drive Type
direct
Prime Mover Type
electric motor
Inclosure Type
fully inclosed
Mounting Facility Type And Quantity
4 unthreaded hole
Rotation Direction For Which Designed
counterclockwise
Features Provided
thermal protective device
Air Flow Rate
54.000 cubic feet per minute maximum
Outlet Location
bottom or top
Voltage In Volts And Current Type
115.0 ac
Prime Mover Power Rating
0.067 horsepower
Prime Mover Drive Shaft Bearing Type
sleeve
Discharge Direction
angular down and angular up and horizontal and vertical down and vertical up
Phase
single
Special Features
wheel diameter 3.000 in., wheel width 1.500 in.
Frequency In Hertz
60.0
Height
4.656 inches nominal
Material
steel overall
Surface Treatment
enamel overall
Style Designator
fixed, rectangular outlets

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
4140-01-394-5286 No Name Available 08/01/2019

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
1TDN5 Centrifugal Fan
4C012 Centrifugal Fan
4C012A Centrifugal Fan
J1057 Centrifugal Fan

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4140-00-254-7257?
The FSCG of the NSN 4140-00-254-7257 is 4140
Does the NSN 4140-00-254-7257 have a Schedule B code assigned?
Yes, the Schedule B code is 8414599080
Does NSN 4140-00-254-7257 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4140-00-254-7257 contain precious materials?
Precious metal content is unknown
Does NSN 4140-00-254-7257 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4140-00-254-7257 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Wed, Jul 23, 1969

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