PartsTable
Technical Data Sheet
PartsTable / MRO / 11-1257
11-1257 ✓ 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 material: PLASTIC CASE, body_style: W/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES, body_width: 0.188 INCHES NOMINAL IN, body_height: 0.281 INCHES NOMINAL IN, body_length: 0.500 INCHES NOMINAL IN, reach_length: 3.250 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 5120-00-142-3807, 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→ 11-1257
NSN: 5120-00-142-3807
FSC: 5120
CAGE: 59501 — UNISON INDUSTRIES LLC (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleW/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES
body_width0.188 INCHES NOMINAL IN
body_height0.281 INCHES NOMINAL IN
body_length0.500 INCHES NOMINAL IN
reach_length3.250 INCHES NOMINAL IN
spread_range1.500 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
overall_length1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN
overall_diameter0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN
style_designatorGEAR AND TERMINAL, TWO JAW, EXTERNAL
features_providedNONRENEWABLE FUSIBLE ELEMENT
surface_treatmentNICKEL TERMINAL
NSN5120-00-142-3807
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 11-1257 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
•
SPREAD RANGE: 1.500 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
•
REACH LENGTH: 3.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: GEAR AND TERMINAL, TWO JAW, EXTERNAL
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)
SPREAD RANGE1.500 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
REACH LENGTH3.250 INCHES NOMINAL IN
STYLE DESIGNATORGEAR AND TERMINAL, TWO JAW, EXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
P8-D1-B4Interchangeable
interchangeable cross-reference
interchangeable
81-9027-0032-7Interchangeable
interchangeable cross-reference
interchangeable
148511Interchangeable
interchangeable cross-reference
interchangeable
DR5F251G0Interchangeable
interchangeable cross-reference
interchangeable
24-316Interchangeable
interchangeable cross-reference
interchangeable
CM15F251GInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11-1257?
11-1257 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 11-1257?
There are 6 known substitutes for 11-1257: P8-D1-B4, 81-9027-0032-7, 148511 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11-1257?
11-1257 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-142-3807. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026