B7W-40398-1 — IMPELLER,FAN,AXIAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

B7W-40398-1: IMPELLER,FAN,AXIAL.

The IMPELLER,FAN,AXIAL is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include diameter: 31.175 INCHES MINIMUM AND 31.177 INCHES MAXIMUM IN, material: ALUMINUM OVERALL, special_features: DESIGNED FOR CCW ROTATION DIRECTION, style_designator: STRAIGHT TIP, end_item_identification: VANEAXIAL FAN,BUFFALO FORGE CO SIZE A16A. This part is cataloged in the U.S.

Government catalog under NSN 4140-01-206-1004, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

B7W-40398-1

NSN: 4140-01-206-1004
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
CAGE: 75477 — FM AF, LLC DBA AMERICAN FAN COMPANY (USA)

SPECIFICATIONS

diameter	31.175 INCHES MINIMUM AND 31.177 INCHES MAXIMUM IN
material	ALUMINUM OVERALL
blade_quantity	9
special_features	DESIGNED FOR CCW ROTATION DIRECTION
style_designator	STRAIGHT TIP
end_item_identification	VANEAXIAL FAN,BUFFALO FORGE CO SIZE A16A
NSN	4140-01-206-1004

COMPONENT DIAGRAM

KEY FEATURES

•

STYLE DESIGNATOR: STRAIGHT TIP

•

DIAMETER: 31.175 INCHES MINIMUM AND 31.177 INCHES MAXIMUM IN

•

BLADE QUANTITY: 9

•

MATERIAL: ALUMINUM OVERALL

TYPICAL APPLICATIONS

Server thermal management and cooling
Hot-swap fan replacement in production environments
Redundant cooling for high-availability systems

TECHNICAL CHARACTERISTICS

STYLE DESIGNATOR	STRAIGHT TIP
DIAMETER	31.175 INCHES MINIMUM AND 31.177 INCHES MAXIMUM IN
BLADE QUANTITY	9
SPECIAL FEATURES	DESIGNED FOR CCW ROTATION DIRECTION
END ITEM IDENTIFICATION	VANEAXIAL FAN,BUFFALO FORGE CO SIZE A16A
MATERIAL	ALUMINUM OVERALL

OTHER ITEMS IN FSC 4140 — Fans, Air Circulators, and Blower Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4140-00-000-0082 4140-00-001-1517 4140-00-001-1536 4140-00-001-1537 4140-00-001-3930 4140-00-001-6464 4140-00-001-6874 4140-00-001-6875

SUBSTITUTES & CROSS-REFERENCES 2

7W-40398-1Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

9W-57435 PIECE 1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is B7W-40398-1?

B7W-40398-1 is a IMPELLER,FAN,AXIAL.

What parts can replace B7W-40398-1?

There are 2 known substitutes for B7W-40398-1: 7W-40398-1, 9W-57435 PIECE 1. Substitute compatibility should be verified for your specific system.

What is the NSN for B7W-40398-1?

B7W-40398-1 is cataloged in the U.S. Government catalog under NSN 4140-01-206-1004. This indicates validated use in U.S. government and defense supply chains.

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