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Technical Data Sheet
PartsTable / COMPONENT / 251.500
251.500 ✓ Verified by PartsTable
— · 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

The 251.500 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5920-01-244-4238, 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
251.500
NSN: 5920-01-244-4238
FSC: 5920
CAGE: 75915 — LITTELFUSE, INC. (USA)
SPECIFICATIONS
Part Number251.500
NSN5920-01-244-4238
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 251.500 TITLE COMPONENT PN 251.500 MFR 251.500
KEY FEATURES
•
TERMINAL LENGTH: 1.500 INCHES NOMINAL IN
•
TERMINAL DIAMETER: 0.031 INCHES NOMINAL IN
•
CONTINUOUS CURRENT RATING IN AMPS: 0.500
•
MAXIMUM VOLTAGE RATING IN VOLTS: 125.0 AC
•
CIRCUIT OVER-CURRENT INTERRUPTION TYPE: NORMAL INSTANTANEOUS
•
OVERALL DIAMETER: 0.094 INCHES NOMINAL IN
•
BODY STYLE: PIGTAIL TYPE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.281 INCHES NOMINAL IN
TERMINAL LENGTH1.500 INCHES NOMINAL IN
TERMINAL DIAMETER0.031 INCHES NOMINAL IN
CONTINUOUS CURRENT RATING IN AMPS0.500
MAXIMUM VOLTAGE RATING IN VOLTS125.0 AC
CIRCUIT OVER-CURRENT INTERRUPTION TYPENORMAL INSTANTANEOUS
OVERALL DIAMETER0.094 INCHES NOMINAL IN
BODY STYLEPIGTAIL TYPE
INTERRUPTION INDICATOR METHODCERAMIC SHELL BREAKS
FEATURES PROVIDEDNONRENEWABLE FUSIBLE ELEMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
25-1500Interchangeable
interchangeable cross-reference
interchangeable
AN3068-24Interchangeable
interchangeable cross-reference
interchangeable
162V-0633Interchangeable
interchangeable cross-reference
interchangeable
A191D-139Interchangeable
interchangeable cross-reference
interchangeable
10/3 SE00WInterchangeable
interchangeable cross-reference
interchangeable
34855Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 251.500?
251.500 is a 251.500.
What parts can replace 251.500?
There are 10 known substitutes for 251.500: 25-1500, AN3068-24, 162V-0633 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 251.500?
251.500 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5920-01-244-4238. 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