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Technical Data Sheet
PartsTable / MRO / 21-447
21-447 ✓ Verified by PartsTable
— · 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

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include shape: CYLINDRICAL, overall_width: 1.700 INCHES NOMINAL IN, overall_length: 2.900 INCHES NOMINAL IN, operating_pressure: 7450.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS, end_item_identification: MEDIUM MINE PROTECTED VEHICLE - MMPV., component_type_and_quantity: 1 BOARD AND 2 COIL AND 1 INDUCTOR AND 13 DIODE AND 4 CAPACITOR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-144-4494, 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
MRO→ MRO_GENERAL→ 21-447
NSN: 6685-00-144-4494
FSC: 6685
CAGE: 35918 — HORIZON AEROSPACE LLC DBA MAGNETICS DIVISION (USA)
SPECIFICATIONS
shapeCYLINDRICAL
overall_width1.700 INCHES NOMINAL IN
overall_length2.900 INCHES NOMINAL IN
operating_pressure7450.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
end_item_identificationMEDIUM MINE PROTECTED VEHICLE - MMPV.
component_type_and_quantity1 BOARD AND 2 COIL AND 1 INDUCTOR AND 13 DIODE AND 4 CAPACITOR
criticality_code_justificationAAJJ
general_characteristics_item_descriptionINSULATOR WM17-16 2; BUMPER,POINTER 21-428 1; 0.750 IN. L IN
NSN6685-00-144-4494
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN 21-447 MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: INSULATOR WM17-16 2; BUMPER,POINTER 21-428 1; 0.750 IN. L IN
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)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONINSULATOR WM17-16 2; BUMPER,POINTER 21-428 1; 0.750 IN. L IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
2238Interchangeable
interchangeable cross-reference
interchangeable
1087Interchangeable
interchangeable cross-reference
interchangeable
3466965Interchangeable
interchangeable cross-reference
interchangeable
21447Interchangeable
interchangeable cross-reference
interchangeable
21447-1Interchangeable
interchangeable cross-reference
interchangeable
960283-13Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21-447?
21-447 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21-447?
There are 8 known substitutes for 21-447: 2238, 1087, 3466965 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21-447?
21-447 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-144-4494. 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