PartsTable
Technical Data Sheet
PartsTable / MRO / 34-0257
34-0257 ✓ 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: BUSHING MOUNTED TYPE, body_length: 0.375 INCHES NOMINAL IN, body_diameter: 0.125 INCHES NOMINAL IN, terminal_type: WIRE LEAD, inclosure_type: ENCAPSULATED, overall_length: 2.380 INCHES MAXIMUM 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 5905-00-521-0516, 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→ 34-0257
NSN: 5905-00-521-0516
FSC: 5905
CAGE: 89536 — FLUKE CORP (USA)
SPECIFICATIONS
materialPLASTIC POLYHEXAMETHYLENE ADIPAMIDE AND GLASS OR PLASTIC POLYCAPROLACTAM AND GLASS OR PLASTIC POLYHEXAMETHYLENE SEBACAMIDE AND GLASS BODY
body_styleBUSHING MOUNTED TYPE
body_length0.375 INCHES NOMINAL IN
body_diameter0.125 INCHES NOMINAL IN
terminal_typeWIRE LEAD
inclosure_typeENCAPSULATED
overall_length2.380 INCHES MAXIMUM IN
resistor_rating120.0 KILOHMS
bushing_diameter0.625 INCHES NOMINAL IN
overall_diameter0.920 INCHES MINIMUM AND 0.960 INCHES MAXIMUM IN
style_designatorAXIAL TERMINAL EACH END
voltage_in_volts250.0
NSN5905-00-521-0516
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN 34-0257 MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
TEMP COEFFICIENT OF RESISTANCE IN PPM PER DEG CELSIUS: -25.0 TO 25.0
•
TEST DATA DOCUMENT: 81349-MILR55182 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
•
AMBIENT TEMP IN DEG CELSIUS AT ZERO PERCENT RATED POWER: 175.0
•
ELECTRICAL RESISTANCE: 50.000 KILOHMS
•
POWER DISSIPATION RATING IN WATTS: 0.125 FREE AIR
•
INCLOSURE TYPE: ENCAPSULATED
•
BODY LENGTH: 0.375 INCHES NOMINAL IN
•
RESISTANCE TOLERANCE IN PERCENT: -0.100 TO 0.100
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)
TEMP COEFFICIENT OF RESISTANCE IN PPM PER DEG CELSIUS-25.0 TO 25.0
TEST DATA DOCUMENT81349-MILR55182 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
AMBIENT TEMP IN DEG CELSIUS AT ZERO PERCENT RATED POWER175.0
ELECTRICAL RESISTANCE50.000 KILOHMS
POWER DISSIPATION RATING IN WATTS0.125 FREE AIR
INCLOSURE TYPEENCAPSULATED
BODY LENGTH0.375 INCHES NOMINAL IN
RESISTANCE TOLERANCE IN PERCENT-0.100 TO 0.100
AMBIENT TEMP AT FULL RATED POWER125.0 CELSIUS DEGC
STYLE DESIGNATORAXIAL TERMINAL EACH END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
3240938Interchangeable
interchangeable cross-reference
interchangeable
5M4851-220-44Interchangeable
interchangeable cross-reference
interchangeable
FHL21GYInterchangeable
interchangeable cross-reference
interchangeable
34-0257Interchangeable
interchangeable cross-reference
interchangeable
MILR55182-3Interchangeable
Same NIIN cross-reference
interchangeable
MF52C1/4-T2-5002-BInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 34-0257?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 34-0257?
34-0257 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 34-0257?
There are 12 known substitutes for 34-0257: 3240938, 5M4851-220-44, FHL21GY and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 34-0257?
34-0257 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-521-0516. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 34-0257

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026