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256873 — Technical Data Sheet

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— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The HOOD,MISSILE COOLING is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include end_item_identification: MISSILE AIM-4. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4935-00-507-0623, 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
256873
NSN: 4935-00-507-0623
FSC: 4935
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
end_item_identificationMISSILE AIM-4
NSN4935-00-507-0623
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HOOD,MISSILE COOLING TITLE COMPONENT PN 256873 MFR HOOD,MISSILE COOLING
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONMISSILE AIM-4
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
6477-32InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
50055InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
S1616InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
05018InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
23BR237112InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5018InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 256873?
256873 is a HOOD,MISSILE COOLING.
What parts can replace 256873?
There are 12 known substitutes for 256873: 6477-32, 50055, S1616 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 256873?
256873 is cataloged in the Federal Logistics Information System under NSN 4935-00-507-0623. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026