W2521

View detailed technical data, stock status, and sourcing information for: W2521
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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

4140-00-977-2489

Item Name Code

10088

Assigment Date

01/01/1962 (64 years ago)

setscrew attachment method, 42 blade quantity, 10.000 inches nominal diameter, 6.000 inches nominal width, ccw impeller rotation special features

Product Characteristics

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

Width: 6.000 inches nominal
Diameter: 10.000 inches nominal
Blade Quantity: 42
Attachment Method: setscrew
Special Features: ccw impeller rotation
Material: steel overall
Style Designator: straight blades single width

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4140-00-952-8679	No Name Available	05/01/1976

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
717401-016	Centrifugal Fan Impeller
717401-16	Centrifugal Fan Impeller
723898-983	Centrifugal Fan Impeller
W2521	Centrifugal Fan Impeller

FAQs

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

What is the FSCG of the NSN 4140-00-977-2489?

The FSCG of the NSN 4140-00-977-2489 is 4140

Does the NSN 4140-00-977-2489 have a Schedule B code assigned?

Yes, the Schedule B code is 8414901040

Does NSN 4140-00-977-2489 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 4140-00-977-2489 contain precious materials?

Precious metal content is unknown

Does NSN 4140-00-977-2489 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 4140-00-977-2489 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962