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Technical Data Sheet
PartsTable / MRO / 521-G251
521-G251 ✓ 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 521-G251 is a the manufacturer industrial component. Key specifications include overall_width: 2.690 INCHES NOMINAL IN, overall_length: 4.500 INCHES NOMINAL IN, special_features: POWER SOURCE:EXTERNAL;MOUNTING METHOD:STATIONARY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-01-240-2022, 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→ 521-G251
NSN: 5895-01-240-2022
FSC: 5895
CAGE: 22978 — MEASUREMENT SYSTEMS INC (USA)
SPECIFICATIONS
overall_width2.690 INCHES NOMINAL IN
overall_length4.500 INCHES NOMINAL IN
special_featuresPOWER SOURCE:EXTERNAL;MOUNTING METHOD:STATIONARY
NSN5895-01-240-2022
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 521-G251 TITLE COMPONENT PN 521-G251 MFR 521-G251
KEY FEATURES
•
Generation 251 Platform
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESPOWER SOURCE:EXTERNAL;MOUNTING METHOD:STATIONARY
OVERALL LENGTH4.500 INCHES NOMINAL IN
OVERALL WIDTH2.690 INCHES NOMINAL IN
SPECIAL FEATURESPOWER SOURCE:EXTERNAL;MOUNTING METHOD:STATIONARY
OVERALL LENGTH4.500 INCHES NOMINAL IN
OVERALL WIDTH2.690 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
SFR1-53PPK18/36Interchangeable
interchangeable cross-reference
interchangeable
S326-4Interchangeable
interchangeable cross-reference
interchangeable
120-02189Interchangeable
interchangeable cross-reference
interchangeable
120-02189-000Interchangeable
interchangeable cross-reference
interchangeable
13229E0122Interchangeable
interchangeable cross-reference
interchangeable
A&I N3245 ITEM 1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 521-G251?
521-G251 is a 521-G251. It is classified as a MRO (MRO_GENERAL).
What parts can replace 521-G251?
There are 6 known substitutes for 521-G251: SFR1-53PPK18/36, S326-4, 120-02189 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 521-G251?
521-G251 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-01-240-2022. 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