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Technical Data Sheet
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WF1814/57-F140 — Technical Data Sheet

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— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The FUSE,CARTRIDGE is a the manufacturer industrial component. Key specifications include material: COPPER OR COPPER ALLOY TERMINAL, body_style: REJECTION GROOVE TYPE, overall_length: 3.000 INCHES NOMINAL IN, overall_diameter: 0.812 INCHES NOMINAL IN, features_provided: NONRENEWABLE FUSIBLE ELEMENT, specification/standard_data: 81348-W-F-1814/57 GOVERNMENT SPECIFICATION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5920-01-231-3273, 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→ WF1814/57-F140
NSN: 5920-01-231-3273
FSC: 5920
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialCOPPER OR COPPER ALLOY TERMINAL
body_styleREJECTION GROOVE TYPE
overall_length3.000 INCHES NOMINAL IN
overall_diameter0.812 INCHES NOMINAL IN
features_providedNONRENEWABLE FUSIBLE ELEMENT
specification/standard_data81348-W-F-1814/57 GOVERNMENT SPECIFICATION
interruption_indicator_methodOPAQUE BODY
maximum_voltage_rating_in_volts250.0 AC AND 250.0 DC
continuous_current_rating_in_amps40.000
circuit_over-current_interruption_typeNORMAL INSTANTANEOUS
NSN5920-01-231-3273
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FUSE,CARTRIDGE TITLE COMPONENT PN WF1814/57-F140 MFR FUSE,CARTRIDGE
KEY FEATURES
•
CONTINUOUS CURRENT RATING IN AMPS: 40.000
•
FEATURES PROVIDED: NONRENEWABLE FUSIBLE ELEMENT
•
OVERALL DIAMETER: 0.812 INCHES NOMINAL IN
•
MAXIMUM VOLTAGE RATING IN VOLTS: 250.0 AC AND 250.0 DC
•
MATERIAL: COPPER OR COPPER ALLOY TERMINAL
•
SPECIFICATION/STANDARD DATA: 81348-W-F-1814/57 GOVERNMENT SPECIFICATION
•
TEST DATA DOCUMENT: 81348-W-F-1814 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.).
TECHNICAL CHARACTERISTICS
OVERALL LENGTH3.000 INCHES NOMINAL IN
CONTINUOUS CURRENT RATING IN AMPS40.000
FEATURES PROVIDEDNONRENEWABLE FUSIBLE ELEMENT
OVERALL DIAMETER0.812 INCHES NOMINAL IN
MAXIMUM VOLTAGE RATING IN VOLTS250.0 AC AND 250.0 DC
MATERIALCOPPER OR COPPER ALLOY TERMINAL
SPECIFICATION/STANDARD DATA81348-W-F-1814/57 GOVERNMENT SPECIFICATION
TEST DATA DOCUMENT81348-W-F-1814 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.).
INTERRUPTION INDICATOR METHODOPAQUE BODY
CIRCUIT OVER-CURRENT INTERRUPTION TYPENORMAL INSTANTANEOUS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
WF1814/57-D160InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
W-F-1814/57InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
WF1814/57-D560InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
W-F-1726/2-010InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
WF791AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
29632-DAInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WF1814/57-F140?
WF1814/57-F140 is a FUSE,CARTRIDGE. It is classified as a MRO (MRO_GENERAL).
What parts can replace WF1814/57-F140?
There are 14 known substitutes for WF1814/57-F140: WF1814/57-D160, W-F-1814/57, WF1814/57-D560 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for WF1814/57-F140?
WF1814/57-F140 is cataloged in the Federal Logistics Information System under NSN 5920-01-231-3273. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026