PartsTable
Technical Data Sheet
A1-78 ✓ 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

The CAPACITOR,FIXED,ELECTROLYTIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include material: STEEL COMP 303, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, anode_type: SOLID, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, body_length: 0.766 INCHES NOMINAL IN, body_diameter: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 8455-00-123-7747, 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 A1-78
NSN: 8455-00-123-7747
FSC: 8455
CAGE: 22571 — ARMY INSTITUTE OF HERALDRY THIS IS AN ORIGINAL DESIGN ACTIVITY NOT A MFR (USA)
SPECIFICATIONS
materialSTEEL COMP 303
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
anode_typeSOLID
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
body_length0.766 INCHES NOMINAL IN
body_diameter0.375 INCHES NOMINAL IN
coil_quantity8
overall_width0.615 INCHES MINIMUM AND 0.621 INCHES MAXIMUM IN
terminal_typeWIRE LEAD
end_similarityIDENTICAL
inclosure_typeENCAPSULATED
overall_length7.860 INCHES MINIMUM AND 7.880 INCHES MAXIMUM IN
NSN8455-00-123-7747
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN A1-78 MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
FEATURES PROVIDED: EMBROIDERED AND SUBDUED
DESIGN DESIGNATION: INFANTRY DIVISION
NONDEFINITIVE SPEC/STD DATA: I TYPE AND 1 STYLE AND 2 CLASS
DEPARTMENT DESIGNATION: US ARMY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY OLIVE DRAB AND BLACK COLOR AREAS
AWARD IDENTIFICATION DESIGNATOR: 3RD
PROCUREMENT GROUP CODE: 38507
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)
FEATURES PROVIDEDEMBROIDERED AND SUBDUED
DESIGN DESIGNATIONINFANTRY DIVISION
NONDEFINITIVE SPEC/STD DATAI TYPE AND 1 STYLE AND 2 CLASS
DEPARTMENT DESIGNATIONUS ARMY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY OLIVE DRAB AND BLACK COLOR AREAS
AWARD IDENTIFICATION DESIGNATOR3RD
PROCUREMENT GROUP CODE38507
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
RNC55K18R7FSInterchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-55182/1Interchangeable
interchangeable cross-reference
interchangeable
MIL-R-55182/1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652BInterchangeable
interchangeable cross-reference
interchangeable
MIL-I-14652Interchangeable
interchangeable cross-reference
interchangeable
A-1-78Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1-78?
A1-78 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace A1-78?
There are 14 known substitutes for A1-78: RNC55K18R7FS, MIL-PRF-55182/1, MIL-R-55182/1 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1-78?
A1-78 is cataloged in the Federal Logistics Information System (FLIS) under NSN 8455-00-123-7747. This indicates validated use in U.S. government and defense supply chains.
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