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503996 — GUARD,FAN IMPELLER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

503996: GUARD,FAN IMPELLER.

The GUARD,FAN IMPELLER is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include shape: ROUND, body_material: STEEL CORROSION RESISTING, overall_height: 0.940 INCHES NOMINAL IN, overall_diameter: 3.164 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-691-0018, 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
503996
NSN: 5340-00-691-0018
NIINs: 006910018, 013363626, 014125044
FSC: 5340 — Hardware, Commercial
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
shapeROUND
body_materialSTEEL CORROSION RESISTING
overall_height0.940 INCHES NOMINAL IN
overall_diameter3.164 INCHES NOMINAL IN
NSN5340-00-691-0018
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 503996 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
•
MATERIAL: STEEL
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 503996?
503996 is a GUARD,FAN IMPELLER.
What is the NSN for 503996?
503996 is cataloged in the U.S. Government catalog under NSN 5340-00-691-0018. This indicates validated use in U.S. government and defense supply chains.
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