2C781

View detailed technical data, stock status, and sourcing information for: 2C781
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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

4140-00-918-7837

Item Name Code

04254

Assigment Date

01/01/1960 (66 years ago)

6.438 inches nominal width, 6.312 inches nominal length, 3.812 inches nominal diameter, single speed speed adjustments, 1 stage quantity

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
Speed Adjustments: single speed
Width: 6.438 inches nominal
Diameter: 3.812 inches nominal
Length: 6.312 inches nominal
Ambient Temp At Full Rated Power: 40.0 celsius
Operating Speed At Rated Capacity In Rpm: 2870.0
Electrical Connection Type: wire lead
Outlet Inside Diameter: 2.125 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: 1 flange and 3 unthreaded hole
Rotation Direction For Which Designed: clockwise
Air Flow Rate: 100.0 cubic feet per minute nominal
Outlet Location: top
Voltage In Volts And Current Type: 115.0 ac
Prime Mover Power Rating: 0.097 horsepower
Prime Mover Drive Shaft Bearing Type: sleeve
Discharge Direction: horizontal
Phase: single
Height: 5.812 inches nominal
Material: steel overall
Quantity: 1
Surface Treatment: enamel housing
Style Designator: fixed,round outlets

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
2C781	Centrifugal Fan

FAQs

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

What is the FSCG of the NSN 4140-00-918-7837?

The FSCG of the NSN 4140-00-918-7837 is 4140

Does the NSN 4140-00-918-7837 have a Schedule B code assigned?

Yes, the Schedule B code is 8414599080

Does NSN 4140-00-918-7837 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 4140-00-918-7837 contain precious materials?

Precious metal content is unknown

Does NSN 4140-00-918-7837 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 4140-00-918-7837 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960