PartsTable
Technical Data Sheet
251.25 ✓ 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 251.25 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 5920-01-422-0177, 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
251.25
NSN: 5920-01-422-0177
FSC: 5920
CAGE: 75915 — LITTELFUSE, INC. (USA)
SPECIFICATIONS
Part Number251.25
NSN5920-01-422-0177
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 251.25 TITLE COMPONENT PN 251.25 MFR 251.25
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONVOICE SWITCHING AND CONTROL SYSTEM (VSCS)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
110 49/64Interchangeable
interchangeable cross-reference
interchangeable
53149Interchangeable
interchangeable cross-reference
interchangeable
402Interchangeable
interchangeable cross-reference
interchangeable
25125Interchangeable
interchangeable cross-reference
interchangeable
7486Interchangeable
interchangeable cross-reference
interchangeable
14G-4000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 251.25?
251.25 is a 251.25.
What parts can replace 251.25?
There are 12 known substitutes for 251.25: 110 49/64, 53149, 402 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 251.25?
251.25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5920-01-422-0177. This indicates validated use in U.S. government and defense supply chains.
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