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840290 — ADAPTER,POWER SUPPLY

✓ Government record, cited
— · PSU
PRODUCT OVERVIEW

840290: ADAPTER,POWER SUPPLY.

The ADAPTER,POWER SUPPLY is a the manufacturer power supply unit built for continuous operation in enterprise server and storage platforms. This part is cataloged in the U.S. Government catalog under NSN 5340-00-351-3943, 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
840290
NSN: 5340-00-351-3943
NIINs: 003513943, 016589328
FSC: 5340 — Hardware, Commercial
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
NSN5340-00-351-3943
COMPONENT DIAGRAM
PULL TAB AIRFLOW —W PLATINUM 100-240V~ 50/60Hz OEM BACKPLANE CONN ~200 mm HOT-PLUG POWER SUPPLY | —W | Platinum AC input 100-240V | Redundant pair required | Match wattage in same chassis TITLE PSU —W PN 840290 MFR OEM Platinum
KEY FEATURES
•
FSC APPLICATION DATA: INDICATORS,AZIMUTH-RANGE,RADAR,NONAIRBORNE,EXCEPT FIRE CONTROL AND GUIDED MISSILE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-3065, TYPE S, CLASS SB, GRADE 410ABEFF MIL SPEC SINGLE MATERIAL RESPONSE CUSHIONING
•
DIAMETER: 3.219 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR CUSHIONING
•
THICKNESS: 0.187 INCHES NOMINAL IN
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
FSC APPLICATION DATAINDICATORS,AZIMUTH-RANGE,RADAR,NONAIRBORNE,EXCEPT FIRE CONTROL AND GUIDED MISSILE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-3065, TYPE S, CLASS SB, GRADE 410ABEFF MIL SPEC SINGLE MATERIAL RESPONSE CUSHIONING
DIAMETER3.219 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR CUSHIONING
THICKNESS0.187 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
SMB151726Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 840290?
840290 is a ADAPTER,POWER SUPPLY.
What parts can replace 840290?
There is 1 known substitute for 840290: SMB151726. Substitute compatibility should be verified for your specific system.
What is the NSN for 840290?
840290 is cataloged in the U.S. Government catalog under NSN 5340-00-351-3943. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.