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1256-84 — Technical Data Sheet

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— · COMPONENT
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_shape: OVAL, design_type: DRY, coolant_type: AIR, muffler_design: STRAIGHT THROUGH, operating_position: HORIZONTAL, outlet_connection_type: UNTHREADED FIRST OUTLET. This part is cataloged in the Federal Logistics Information System under NSN 2920-00-353-7249, 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
1256-84
NSN: 2920-00-353-7249
FSC: 2920
CAGE: 08683 — BROCKWAY MOTOR TRUCKS DIV OF MACK TRUCKS INC (USA)
SPECIFICATIONS
body_shapeOVAL
design_typeDRY
coolant_typeAIR
muffler_designSTRAIGHT THROUGH
operating_positionHORIZONTAL
outlet_connection_typeUNTHREADED FIRST OUTLET
NSN2920-00-353-7249
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN 1256-84 MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
MOUNTING METHOD: SNAP SPRING
•
HEIGHT: 2.875 INCHES NOMINAL IN
•
ELECTRODE DESIGN: SINGLE
•
COVER ACCOMMODATION: NOT INCLUDED
•
FUNGUS RESISTANT TREATMENT: INCLUDED
•
APPLICATION DESIGN: DISTRIBUTOR
•
IGNITION SYSTEM DESIGN: DUAL
•
RADIO INTERFERENCE SHIELDING: NOT PROVIDED
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
MOUNTING METHODSNAP SPRING
HEIGHT2.875 INCHES NOMINAL IN
ELECTRODE DESIGNSINGLE
COVER ACCOMMODATIONNOT INCLUDED
FUNGUS RESISTANT TREATMENTINCLUDED
APPLICATION DESIGNDISTRIBUTOR
IGNITION SYSTEM DESIGNDUAL
RADIO INTERFERENCE SHIELDINGNOT PROVIDED
SPRING LOADED BRUSH TYPE ELECTRODE ACCOMMODATIONINCLUDED
SPARK PLUG LEAD ACCOMMODATION POSITIONVERTICAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
142456InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
12403InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1141InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0236InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1642InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A-A-59367InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1256-84?
1256-84 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace 1256-84?
There are 24 known substitutes for 1256-84: 142456, 12403, 1141 and 21 more. Substitute compatibility should be verified for your specific system.
Is 1256-84 still available?
1256-84 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: October 2026