PartsTable
Technical Data Sheet
PartsTable / MRO / 21256-2
21256-2 ✓ 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 body_style: W/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE, body_width: 1.000 INCHES NOMINAL IN, body_height: 0.750 INCHES NOMINAL IN, body_length: 1.812 INCHES NOMINAL IN, core_diameter: 0.160 INCHES NOMINAL IN, core_material: STEEL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-196-2502, 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→ 21256-2
NSN: 5910-00-196-2502
FSC: 5910
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
body_styleW/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE
body_width1.000 INCHES NOMINAL IN
body_height0.750 INCHES NOMINAL IN
body_length1.812 INCHES NOMINAL IN
core_diameter0.160 INCHES NOMINAL IN
core_materialSTEEL
effective_length57.250 INCHES NOMINAL IN
core_constructionWIRE ROPE
features_providedMOUNTING HARDWARE
reliability_indicatorNOT ESTABLISHED
flexible_conduit_materialSTEEL
terminal_type_and_quantity2 UNINSULATED WIRE LEAD W/TERMINAL LUG
NSN5910-00-196-2502
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN 21256-2 MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
BODY WIDTH: 1.000 INCHES NOMINAL IN
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 UNTHREADED MOUNTING HOLES
•
BODY STYLE: W/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE
•
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 600.0 DC SINGLE SECTION
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.188 INCHES NOMINAL IN
•
TERMINAL TYPE AND QUANTITY: 2 UNINSULATED WIRE LEAD W/TERMINAL LUG
•
CAPACITANCE VALUE PER SECTION: 50000.000 PICOFARADS SINGLE SECTION
•
TOLERANCE RANGE PER SECTION: -0.00 TO 10.00 PERCENT SINGLE SECTION
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)
BODY WIDTH1.000 INCHES NOMINAL IN
MOUNTING FACILITY TYPE AND QUANTITY1 UNTHREADED MOUNTING HOLES
BODY STYLEW/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION600.0 DC SINGLE SECTION
UNTHREADED MOUNTING HOLE DIAMETER0.188 INCHES NOMINAL IN
TERMINAL TYPE AND QUANTITY2 UNINSULATED WIRE LEAD W/TERMINAL LUG
CAPACITANCE VALUE PER SECTION50000.000 PICOFARADS SINGLE SECTION
TOLERANCE RANGE PER SECTION-0.00 TO 10.00 PERCENT SINGLE SECTION
SCHEMATIC DIAGRAM DESIGNATORNO COMMON OR GROUNDED ELECTRODE(S)
RELIABILITY INDICATORNOT ESTABLISHED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
21256-2Interchangeable
interchangeable cross-reference
interchangeable
139068Interchangeable
interchangeable cross-reference
interchangeable
255-429AInterchangeable
interchangeable cross-reference
interchangeable
30636Interchangeable
interchangeable cross-reference
interchangeable
200R-562Interchangeable
interchangeable cross-reference
interchangeable
4001/630-0.1895Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21256-2?
21256-2 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21256-2?
There are 19 known substitutes for 21256-2: 21256-2, 139068, 255-429A and 16 more. Substitute compatibility should be verified for your specific system.
Is 21256-2 still available?
21256-2 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