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F03A-1/2S ✓ 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 F03A-1/2S 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 5920-01-091-1818, 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
F03A-1/2S
NSN: 5920-01-091-1818
FSC: 5920
CAGE: 71400 — COOPER BUSSMANN, LLC DBA COOPER INDUSTRIES (USA)
SPECIFICATIONS
Part NumberF03A-1/2S
NSN5920-01-091-1818
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available F03A-1/2S TITLE COMPONENT PN F03A-1/2S MFR F03A-1/2S
KEY FEATURES
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TEST DATA DOCUMENT: 81349-MIL-F-15160 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.).
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SURFACE TREATMENT: SILVER TERMINAL
•
CIRCUIT OVER-CURRENT INTERRUPTION TYPE: NORMAL INSTANTANEOUS
•
FEATURES PROVIDED: NONRENEWABLE FUSIBLE ELEMENT
•
PRECIOUS MATERIAL AND LOCATION: TERMINAL SURFACES SILVER
•
INTERRUPTION INDICATOR METHOD: OPAQUE BODY
•
OVERALL DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
TEST DATA DOCUMENT81349-MIL-F-15160 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.).
SURFACE TREATMENTSILVER TERMINAL
CIRCUIT OVER-CURRENT INTERRUPTION TYPENORMAL INSTANTANEOUS
OVERALL LENGTH1.250 INCHES NOMINAL IN
FEATURES PROVIDEDNONRENEWABLE FUSIBLE ELEMENT
PRECIOUS MATERIAL AND LOCATIONTERMINAL SURFACES SILVER
INTERRUPTION INDICATOR METHODOPAQUE BODY
OVERALL DIAMETER0.250 INCHES NOMINAL IN
PRECIOUS MATERIALSILVER
CONTINUOUS CURRENT RATING IN AMPS0.500
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
L01121Interchangeable
interchangeable cross-reference
interchangeable
F03A250V1/2ASInterchangeable
interchangeable cross-reference
interchangeable
3AB12Interchangeable
interchangeable cross-reference
interchangeable
412197Interchangeable
interchangeable cross-reference
interchangeable
5920PL1297614Interchangeable
interchangeable cross-reference
interchangeable
ABC-1/2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F03A-1/2S?
F03A-1/2S is a F03A-1/2S.
What parts can replace F03A-1/2S?
There are 11 known substitutes for F03A-1/2S: L01121, F03A250V1/2AS, 3AB12 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for F03A-1/2S?
F03A-1/2S is cataloged in the Federal Logistics Information System (FLIS) under NSN 5920-01-091-1818. 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