D12685A-7/8 — IMPELLER,FAN,CENTRIFUGAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

D12685A-7/8: IMPELLER,FAN,CENTRIFUGAL.

The IMPELLER,FAN,CENTRIFUGAL is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include width: 5.312 INCHES NOMINAL IN, diameter: 11.500 INCHES NOMINAL IN, material: ALUMINUM OVERALL, blade_quantity: 10, special_features: CW ROTATION VIEWED FROM CLOSED SIDE OF WHEEL, style_designator: CURVED BLADES SINGLE WIDTH. This part is cataloged in the U.S.

Government catalog under NSN 4140-00-808-5336, 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

D12685A-7/8

NSN: 4140-00-808-5336
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
CAGE: 00248 — BLOWERS, LLC (USA)

SPECIFICATIONS

width	5.312 INCHES NOMINAL IN
diameter	11.500 INCHES NOMINAL IN
material	ALUMINUM OVERALL
blade_quantity	10
special_features	CW ROTATION VIEWED FROM CLOSED SIDE OF WHEEL
style_designator	CURVED BLADES SINGLE WIDTH
attachment_method	KEYWAY AND SETSCREW
end_item_identification	BLOWER UNIT,BLOWER INC. MODEL MA1
rotation_direction_for_which_designed	CLOCKWISE
NSN	4140-00-808-5336

COMPONENT DIAGRAM

KEY FEATURES

•

STYLE DESIGNATOR: CURVED BLADES SINGLE WIDTH

•

ATTACHMENT METHOD: KEYWAY AND SETSCREW

•

DIAMETER: 11.500 INCHES NOMINAL IN

•

BLADE QUANTITY: 10

•

WIDTH: 5.312 INCHES NOMINAL IN

•

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	CURVED BLADES SINGLE WIDTH
ATTACHMENT METHOD	KEYWAY AND SETSCREW
DIAMETER	11.500 INCHES NOMINAL IN
BLADE QUANTITY	10
SPECIAL FEATURES	CW ROTATION VIEWED FROM CLOSED SIDE OF WHEEL
WIDTH	5.312 INCHES NOMINAL IN
END ITEM IDENTIFICATION	BLOWER UNIT,BLOWER INC. MODEL MA1
MATERIAL	ALUMINUM OVERALL
ROTATION DIRECTION FOR WHICH DESIGNED	CLOCKWISE

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 3

D12685BReference document

Same NSN cross-reference

Reference document — Secondary reference

D12685B-7/8Reference document

Same NSN cross-reference

Reference document — Secondary reference

D12685AReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is D12685A-7/8?

D12685A-7/8 is a IMPELLER,FAN,CENTRIFUGAL.

What parts can replace D12685A-7/8?

There are 3 known substitutes for D12685A-7/8: D12685B, D12685B-7/8, D12685A. Substitute compatibility should be verified for your specific system.

What is the NSN for D12685A-7/8?

D12685A-7/8 is cataloged in the U.S. Government catalog under NSN 4140-00-808-5336. This indicates validated use in U.S. government and defense supply chains.

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D12685A-7/8 — IMPELLER,FAN,CENTRIFUGAL

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