PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FM08A125V3/8AFuse,cartridge

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5920-01-085-5490 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-085-5490 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-085-5490. Primary manufacturer part number: FM08A125V3/8A.
Features
  • Fuse,cartridge — FSC 5920
  • 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.).
  • Surface Treatment: GOLD TERMINAL
  • Specification/standard Data: 81349-MIL-F-23419/8 GOVERNMENT SPECIFICATION
  • Material: COPPER TERMINAL
  • Features Provided: NONRENEWABLE FUSIBLE ELEMENT
  • Terminal Diameter: 0.025 INCHES NOMINAL IN
  • Maximum Voltage Rating in Volts: 125.0 AC AND 125.0 DC
Applications
  • Applications requiring Copper Terminal construction
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-01-085-5490, is classified within Federal Supply Class 5920 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5920-01-085-5490
Primary Part NumberFM08A125V3/8A
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
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.).
Surface TreatmentGOLD TERMINAL
Specification/standard Data81349-MIL-F-23419/8 GOVERNMENT SPECIFICATION
MaterialCOPPER TERMINAL
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Terminal Diameter0.025 INCHES NOMINAL IN
Maximum Voltage Rating in Volts125.0 AC AND 125.0 DC
Circuit Over-Current Interruption TypeNORMAL INSTANTANEOUS
Precious Material and LocationCAP AND LEAD SURFACES GOLD
Interruption Indicator MethodOPAQUE BODY
Terminal Length1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
Overall Diameter0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
Continuous Current Rating in Amps0.375
Precious MaterialGOLD
MaterialCERAMIC OR GLASS CASE
Body StylePIGTAIL TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5920-01-083-3747 INTERCHANGEABLE
Fuse,cartridge
5920-01-083-3748 INTERCHANGEABLE
Fuse,cartridge
5920-01-083-3749 INTERCHANGEABLE
Fuse,cartridge
5920-01-104-3919 INTERCHANGEABLE
Fuse,cartridge
5920-01-112-2446 INTERCHANGEABLE
Fuse,cartridge
5920-01-115-7222 INTERCHANGEABLE
Fuse,cartridge
5920-01-175-8183 INTERCHANGEABLE
Fuse,cartridge
5920-01-175-8184 INTERCHANGEABLE
Fuse,cartridge
5920-01-187-7969 INTERCHANGEABLE
Fuse,cartridge
5920-01-245-9650 INTERCHANGEABLE
Fuse,cartridge
Cross-Reference Index
Part NumberManufacturer
FM08A125V3/8A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-23419/8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-F-23419/8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
FM08-125V3/8A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
265-375 Littelfuse, Inc. (USA)
10129247 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
5920-01-083-3747INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-083-3748INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-083-3749INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-104-3919INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-112-2446INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-115-7222INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-175-8183INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-175-8184INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-187-7969INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-245-9650INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-307-9286INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-310-5728INTERCHANGEABLE
FUSE,CARTRIDGE

Frequently Asked Questions

What is NSN 5920-01-085-5490?

NSN 5920-01-085-5490 is a Fuse,cartridge, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5920-01-085-5490?

NSN 5920-01-085-5490 has 6 cross-referenced part numbers: FM08A125V3/8A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-23419/8 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-F-23419/8 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), FM08-125V3/8A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 265-375 (Littelfuse, Inc.) and 1 more.

What NSN replaces 5920-01-085-5490?

There are 12 known substitutes for 5920-01-085-5490: 5920-01-083-3747, 5920-01-083-3748, 5920-01-083-3749 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FM08A125V3/8A?

Key specifications for FM08A125V3/8A: 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.).; Surface Treatment: GOLD TERMINAL; Specification/standard Data: 81349-MIL-F-23419/8 GOVERNMENT SPECIFICATION; Material: COPPER TERMINAL. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-01-085-5490 still in active supply?

NSN 5920-01-085-5490 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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