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028291 — FAN,TUBEAXIAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

028291: FAN,TUBEAXIAL.

The FAN,TUBEAXIAL is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include phase: SINGLE, width: 4.700 INCHES NOMINAL IN, height: 4.700 INCHES NOMINAL IN, length: 1.510 INCHES NOMINAL IN, material: PLASTIC POLYPROPYLENE BLADE, drive_type: DIRECT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-761-7461, 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
028291
NSN: 5340-00-761-7461
NIINs: 007617461, 010969157
FSC: 5340 — Hardware, Commercial
CAGE: 77640 — ZF ACTIVE SAFETY AND ELECTRONICS US LLC DIV TRW COMMERCIAL STEERING SYSTEMS (USA)
SPECIFICATIONS
phaseSINGLE
width4.700 INCHES NOMINAL IN
height4.700 INCHES NOMINAL IN
length1.510 INCHES NOMINAL IN
materialPLASTIC POLYPROPYLENE BLADE
drive_typeDIRECT
air_flow_rate65.0 CUBIC FEET PER MINUTE NOMINAL
flow_directionINWARD
inclosure_typeFULLY INCLOSED
prime_mover_typeELECTRIC MOTOR
style_designatorFIXED
speed_adjustmentsSINGLE SPEED
NSN5340-00-761-7461
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 028291 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FIRST STEP DIAMETER: 1.3750 INCHES NOMINAL IN
•
END DIAMETER: 0.9850 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.3250 INCHES NOMINAL IN
•
DESIGN TYPE: SPLIT
•
STYLE DESIGNATOR: SEAT
•
BORE DIAMETER: 0.8600 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYAMIDE NYLON
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.4380 INCHES NOMINAL IN
FIRST STEP DIAMETER1.3750 INCHES NOMINAL IN
END DIAMETER0.9850 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.3250 INCHES NOMINAL IN
DESIGN TYPESPLIT
STYLE DESIGNATORSEAT
BORE DIAMETER0.8600 INCHES NOMINAL IN
MATERIALPLASTIC POLYAMIDE NYLON
SUBSTITUTES & CROSS-REFERENCES 3
03-605904Reference document
Same NSN cross-reference
Reference document — Secondary reference
062967Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7617461Reference 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 028291?
028291 is a FAN,TUBEAXIAL.
What parts can replace 028291?
There are 3 known substitutes for 028291: 03-605904, 062967, 7617461. Substitute compatibility should be verified for your specific system.
What is the NSN for 028291?
028291 is cataloged in the U.S. Government catalog under NSN 5340-00-761-7461. This indicates validated use in U.S. government and defense supply chains.
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