2C739

View detailed technical data, stock status, and sourcing information for: 2C739
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Federal Supply Group

Refrigeration, Air Conditioning, and Air Circulating Equipment

Federal Supply Classification

4140 Blower Equipment, Air Circulators and Fans

National Stock Number

4140-00-022-1020

Item Name Code

04254

Assigment Date

07/14/1972 (54 years ago)

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.

5.000 inches nominal outlet inside height, 1 stage quantity, 4.000 inches nominal outlet inside width, 18.000 inches nominal length, 21.000 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.

Stage Quantity: 1
Width: 21.000 inches nominal
Length: 18.000 inches nominal
Outlet Inside Width: 4.000 inches nominal
Outlet Inside Height: 5.000 inches nominal
Static Pressure At Specified Air Flow Rate: 1.0 inches of water
Drive Type: direct
Mounting Facility Type And Quantity: 1 pedestal
Rotation Direction For Which Designed: clockwise
Air Flow Rate: 1200.0 cubic feet per minute nominal
Outlet Location: bottom
Discharge Direction: horizontal
Special Features: designed for use w/3450 rpm elec motor,motor not included,discharge blast direction adjustable to 7 positions
Height: 19.000 inches nominal
Material: aluminum blade
Material: steel housing
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Below is a list of NSNs that have been officially superseded by this NSN: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
4140-01-110-5037	No Name Available	03/01/1990

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
2C739	Centrifugal Fan

FAQs

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

What is the FSCG of the NSN 4140-00-022-1020?

The FSCG of the NSN 4140-00-022-1020 is 4140

Does the NSN 4140-00-022-1020 have a Schedule B code assigned?

Yes, the Schedule B code is 8414599080

Does NSN 4140-00-022-1020 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 4140-00-022-1020 contain precious materials?

Item does not contain precious metal.

Does NSN 4140-00-022-1020 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 4140-00-022-1020 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Jul 14, 1972