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645A625H01 — CAPACITOR,FIXED,MICA DIELECTRIC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

645A625H01: CAPACITOR,FIXED,MICA DIELECTRIC.

CAPACITOR,FIXED,MICA DIELECTRIC. Key specifications include length: 1.250 INCHES NOMINAL IN, material: STEEL OVERALL, drive_type: DIRECT, prime_mover_type: ELECTRIC MOTOR, style_designator: FIXED, housing_inside_diameter: 3.064 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4140-01-199-3590, 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
645A625H01
NSN: 4140-01-199-3590
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
length1.250 INCHES NOMINAL IN
materialSTEEL OVERALL
drive_typeDIRECT
prime_mover_typeELECTRIC MOTOR
style_designatorFIXED
housing_inside_diameter3.064 INCHES NOMINAL IN
material_document_and_classificationTT-E-489 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
rotation_direction_for_which_designedCLOCKWISE
NSN4140-01-199-3590
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 645A625H01 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
•
LENGTH: 1.250 INCHES NOMINAL IN
•
HOUSING INSIDE DIAMETER: 3.064 INCHES NOMINAL IN
•
DRIVE TYPE: DIRECT
•
STYLE DESIGNATOR: FIXED
•
MATERIAL DOCUMENT AND CLASSIFICATION: TT-E-489 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL OVERALL
•
PRIME MOVER TYPE: ELECTRIC MOTOR
•
ROTATION DIRECTION FOR WHICH DESIGNED: CLOCKWISE
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
LENGTH1.250 INCHES NOMINAL IN
HOUSING INSIDE DIAMETER3.064 INCHES NOMINAL IN
DRIVE TYPEDIRECT
STYLE DESIGNATORFIXED
MATERIAL DOCUMENT AND CLASSIFICATIONTT-E-489 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PRIME MOVER TYPEELECTRIC MOTOR
ROTATION DIRECTION FOR WHICH DESIGNEDCLOCKWISE
SUBSTITUTES & CROSS-REFERENCES 1
034374Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 645A625H01?
645A625H01 is a CAPACITOR,FIXED,MICA DIELECTRIC.
What parts can replace 645A625H01?
There is 1 known substitute for 645A625H01: 034374. Substitute compatibility should be verified for your specific system.
What is the NSN for 645A625H01?
645A625H01 is cataloged in the U.S. Government catalog under NSN 4140-01-199-3590. 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.