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Technical Data Sheet
PartsTable / POWER_SUPPLY / 865408-B21
865408-B21 ✓ Verified by PartsTable
HP · POWER_SUPPLY · HOTPLUG_PSU
WHAT YOU NEED TO KNOW
Hotplug PSUs are very sturdy — rarely see warranty claims. Safe bet. Always make sure they're tested. Key checks: Make sure tested.
PRODUCT OVERVIEW

HP 500W Flex Platinum Hot Plug Power Supply. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6130-01-671-1717, 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
POWER_SUPPLY→ HOTPLUG_PSU→ 865408-B21
NSN: 6130-01-671-1717
FSC: 6130
CAGE: AK037 — IMPIANTI S.P.A. (ITA)
SPECIFICATIONS
Part Number865408-B21
ManufacturerHP
Wattage500W
NSN6130-01-671-1717
COMPONENT DIAGRAM
PULL TAB AIRFLOW 500W PLATINUM 100-240V~ 50/60Hz HP BACKPLANE CONN ~200 mm HOT-PLUG POWER SUPPLY | 500W | Platinum AC input 100-240V | Redundant pair required | Match wattage in same chassis TITLE PSU 500W PN 865408-B21 MFR HP Platinum
KEY FEATURES
•
500W Power Rating
•
OUTPUT WATTAGE RATING: 500.0 WATTS NOMINAL SINGLE POWER OUTPUT
TYPICAL APPLICATIONS
  • Server power supply replacement (failed or degraded)
  • Redundant power upgrade for high-availability
  • Power capacity upgrade for GPU or expansion configurations
  • Hot-swap power maintenance in production environments
  • Spare inventory for break-fix operations
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONDL380G10 DBL
PART NAME ASSIGNED BY CONTROLLING AGENCYHPE 500W FLEX SLOT PLATINUM HOT PLUG LOW HALOGEN POWER SUPPLY KIT W
OUTPUT WATTAGE RATING500.0 WATTS NOMINAL SINGLE POWER OUTPUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
865408-B21Interchangeable
HP 500W Flex Platinum Hot Plug Power Supply
interchangeable
10444267Interchangeable
Same NIIN cross-reference
interchangeable
865398-001Compatible
HP RPS 500W Flexible Slot Platinum Low Halogen
compatible
866729-001Compatible
HP RPS 500W Flexible Slot Platinum Low Halogen
compatible
P18226-B21Compatible
HP RPS 500W Flexible Slot Platinum Low Halogen for DX Servers
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
THIS PART SUBSTITUTES FOR 3
P18226-B21SUBSTITUTE
HP RPS 500W Flexible Slot Platinum Low Halogen
HPE
865398-001SUBSTITUTE
HP RPS 500W Flexible Slot Platinum Low Halogen
HPE
866729-001SUBSTITUTE
HP RPS 500W Flexible Slot Platinum Low Halogen
HPE
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FREQUENTLY ASKED QUESTIONS
What is 865408-B21?
865408-B21 is a HP 500W Flex Platinum Hot Plug Power Supply manufactured by HP. It is classified as a POWER_SUPPLY (HOTPLUG_PSU).
What parts can replace 865408-B21?
There are 5 known substitutes for 865408-B21: 865408-B21, 10444267, 865398-001 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 865408-B21?
865408-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6130-01-671-1717. 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: July 2026