PartsTable
Technical Data Sheet
21-904 ✓ Verified by PartsTable
Trust · MRO · MRO_GENERAL
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

Universal 45W laptop charger that works with virtually any laptop<br><br><b>Always fully charged</b><br>With the Trust Primo 45W universal laptop charger, you can easily keep your laptop fully charged. The included connectors for virtually every common laptop brand, make sure you’re always prepared to charge any laptop back to full power – your own, or other’s.<br><br><b>Universal and easy</b><br>The Trust Primo 45W universal laptop charger can be used with virtually any laptop that requires a power adapter of 45W or less. Simply select one of the included connectors and charge your Acer, Asus, Dell, HP, Lenovo, Medion or MSI laptop.

Is the right connector not included in the package? Visit trust.com/21904 to request a free additional connector.<br><br><b>Travelling companion</b><br>The charger’s compact and reliable design makes it perfect to take with you, regardless of where you’re going. It works with the wall power socket voltages everywhere in the world, which means you can safel This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1650-00-083-4040, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO MRO_GENERAL 21-904
NSN: 1650-00-083-4040
FSC: 1650
CAGE: 0UES3 — MID-AMERICA AEROTECH, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL EXCEPT INSULATION
nut_stylePLAIN, OCTAGON
body_styleWEBBED, OFFSET, SOLID
bore_stylePLAIN BOTH ENDS
nut_height0.305 INCHES MINIMUM AND 0.319 INCHES MAXIMUM IN
tooth_formSTANDARD
body_length1.960 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
thread_class3B
body_diameter0.320 INCHES NOMINAL IN
terminal_typeTAB, SOLDER LUG
thread_seriesUN
overall_height0.360 INCHES IN
NSN1650-00-083-4040
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Trust CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN 21-904 MFR Trust CAPACITOR,VARIABLE,AIR
KEY FEATURES
OUTSIDE DIAMETER: 3.422 INCHES NOMINAL IN
MATERIAL: STEEL CORROSION RESISTING
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER3.422 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
SPECIAL FEATURESCHROME-PLATED; 1.063IN. W, 0.810IN. THK; 1 GROOVE 0.188IN. W, 0.242IN. DP IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
21904Interchangeable
interchangeable cross-reference
interchangeable
2890907Interchangeable
interchangeable cross-reference
interchangeable
2890907-1Interchangeable
interchangeable cross-reference
interchangeable
A1210PC31Interchangeable
interchangeable cross-reference
interchangeable
A1161PC31Interchangeable
interchangeable cross-reference
interchangeable
A989PC31Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21-904?
21-904 is a CAPACITOR,VARIABLE,AIR DIELECTRI manufactured by Trust. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21-904?
There are 12 known substitutes for 21-904: 21904, 2890907, 2890907-1 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21-904?
21-904 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1650-00-083-4040. This indicates validated use in U.S. government and defense supply chains.
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