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Technical Data Sheet
PartsTable / MRO / FM02125V1-4A
FM02125V1-4A ✓ 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 FUSE,CARTRIDGE is a the manufacturer industrial component. Key specifications include material: COPPER TERMINAL, body_style: PLUG-IN TYPE, body_length: 0.338 INCHES MINIMUM AND 0.358 INCHES MAXIMUM IN, overall_length: 0.498 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN, terminal_length: 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN, overall_diameter: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5920-00-926-0621, 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→ FM02125V1-4A
NSN: 5920-00-926-0621
FSC: 5920
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER TERMINAL
body_stylePLUG-IN TYPE
body_length0.338 INCHES MINIMUM AND 0.358 INCHES MAXIMUM IN
overall_length0.498 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN
terminal_length0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
overall_diameter0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
features_providedNONRENEWABLE FUSIBLE ELEMENT
surface_treatmentNICKEL TERMINAL
terminal_diameter0.024 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
specification/standard_data81349-MIL-F-23419/2J GOVERNMENT SPECIFICATION
interruption_indicator_methodVISIBLE ELEMENT
maximum_voltage_rating_in_volts125.0 AC AND 125.0 DC
NSN5920-00-926-0621
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FUSE,CARTRIDGE TITLE COMPONENT PN FM02125V1-4A MFR FUSE,CARTRIDGE
KEY FEATURES
•
TEST DATA DOCUMENT: 81349-MIL-F-23419 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.).
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-23419/2J GOVERNMENT SPECIFICATION
•
TERMINAL LENGTH: 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
•
MAXIMUM VOLTAGE RATING IN VOLTS: 125.0 AC AND 125.0 DC
•
MATERIAL: COPPER TERMINAL
•
TERMINAL DIAMETER: 0.024 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
•
CIRCUIT OVER-CURRENT INTERRUPTION TYPE: NORMAL INSTANTANEOUS
TECHNICAL CHARACTERISTICS (FLIS)
TEST DATA DOCUMENT81349-MIL-F-23419 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.).
SPECIFICATION/STANDARD DATA81349-MIL-F-23419/2J GOVERNMENT SPECIFICATION
TERMINAL LENGTH0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
MAXIMUM VOLTAGE RATING IN VOLTS125.0 AC AND 125.0 DC
MATERIALCOPPER TERMINAL
TERMINAL DIAMETER0.024 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
CIRCUIT OVER-CURRENT INTERRUPTION TYPENORMAL INSTANTANEOUS
OVERALL LENGTH0.498 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN
OVERALL DIAMETER0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
BODY LENGTH0.338 INCHES MINIMUM AND 0.358 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
AES01C750B50AW9A91Interchangeable
interchangeable cross-reference
interchangeable
ASME B18.2.1Interchangeable
interchangeable cross-reference
interchangeable
223529Interchangeable
interchangeable cross-reference
interchangeable
273-250Interchangeable
interchangeable cross-reference
interchangeable
MILF23419-2Interchangeable
Same NIIN cross-reference
interchangeable
FM02A125V1/4AInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FM02125V1-4A?
FM02125V1-4A is a FUSE,CARTRIDGE. It is classified as a MRO (MRO_GENERAL).
What parts can replace FM02125V1-4A?
There are 10 known substitutes for FM02125V1-4A: AES01C750B50AW9A91, ASME B18.2.1, 223529 and 7 more. Substitute compatibility should be verified for your specific system.
Is FM02125V1-4A still available?
FM02125V1-4A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026