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Technical Data Sheet
PartsTable / MRO / A-590
A-590 ✓ 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,MICA DIELECTRIC. Key specifications include diameter: 0.562 INCHES NOMINAL IN, material: PLASTIC OVERALL, drive_type: SLOTTED, grip_length: 0.900 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS, overall_length: 0.0395 INCHES MINIMUM AND 0.0545 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2520-00-374-9824, 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→ A-590
NSN: 2520-00-374-9824
FSC: 2520
CAGE: 91203 — FULLER G C MFG CO INC (USA)
SPECIFICATIONS
diameter0.562 INCHES NOMINAL IN
materialPLASTIC OVERALL
drive_typeSLOTTED
grip_length0.900 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
overall_length0.0395 INCHES MINIMUM AND 0.0545 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
shank_neck_length0.100 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
body_inside_diameter0.0930 INCHES MINIMUM AND 0.0980 INCHES MAXIMUM IN
body_outside_diameter0.1770 INCHES MINIMUM AND 0.1970 INCHES MAXIMUM IN
turnlock_stud_head_styleFILLISTER
NSN2520-00-374-9824
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN A-590 MFR CAPACITOR,FIXED,MICA D
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
A1027Interchangeable
interchangeable cross-reference
interchangeable
1201-590-Z3CInterchangeable
interchangeable cross-reference
interchangeable
A5-90Interchangeable
interchangeable cross-reference
interchangeable
A0001027Interchangeable
interchangeable cross-reference
interchangeable
A1510Interchangeable
interchangeable cross-reference
interchangeable
679-2748-000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-590?
A-590 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace A-590?
There are 19 known substitutes for A-590: A1027, 1201-590-Z3C, A5-90 and 16 more. Substitute compatibility should be verified for your specific system.
Is A-590 still available?
A-590 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026