PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W-F-791/2Fuse,plug

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5920-00-931-4231 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-931-4231 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-931-4231. Primary manufacturer part number: W-F-791/2.
Features
  • Fuse,plug — FSC 5920
  • Specification/standard Data: 81348-W-F-791/2 GOVERNMENT SPECIFICATION
  • Material: CERAMIC OR GLASS OR PLASTIC CASE
  • Test Data Document: 81348-W-F-791 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.).
  • Circuit Over-Current Interruption Type: TIME DELAY
  • Interruption Indicator Method: VISIBLE ELEMENT
  • Continuous Current Rating in Amps: 1.040
  • Maximum Voltage Rating in Volts: 125.0 AC AND 125.0 DC
Applications
  • Applications requiring Ceramic or Glass or Plastic Case construction
General Description

The Fuse,plug, cataloged under National Stock Number 5920-00-931-4231, 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 Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: Active.

Technical Specifications
ParameterValue
NSN5920-00-931-4231
Primary Part NumberW-F-791/2
Item NameFuse,plug
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Specification/standard Data81348-W-F-791/2 GOVERNMENT SPECIFICATION
MaterialCERAMIC OR GLASS OR PLASTIC CASE
Test Data Document81348-W-F-791 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.).
Circuit Over-Current Interruption TypeTIME DELAY
Interruption Indicator MethodVISIBLE ELEMENT
Continuous Current Rating in Amps1.040
Maximum Voltage Rating in Volts125.0 AC AND 125.0 DC
Circuit Over-Current Interruption Delay Time in Seconds30.0 200 PCT OF CURRENT RATING
Body StyleEDISON BASE
Overall Diameter1.281 INCHES NOMINAL IN
Terminal Length0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5920-00-144-2534 INTERCHANGEABLE
Fuse,plug
5920-00-224-4331 INTERCHANGEABLE
Fuse,plug
5920-00-240-4117T30 INTERCHANGEABLE
Fuse,plug
Cooper Bussmann, Llc Dba Cooper Industries
5920-00-240-4129 INTERCHANGEABLE
Fuse,plug
5920-00-270-5136 INTERCHANGEABLE
Fuse,plug
5920-00-284-6452 INTERCHANGEABLE
Fuse,plug
5920-00-296-0482 INTERCHANGEABLE
Fuse,plug
5920-00-356-2197 INTERCHANGEABLE
Fuse,plug
5920-00-538-4951 INTERCHANGEABLE
Fuse,plug
5920-00-564-3535 INTERCHANGEABLE
Fuse,plug
Cross-Reference Index
Part NumberManufacturer
W-F-791/2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AA55473-10 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA55473 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
WF791/2-009 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
F14B125V1-4-10A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5920-00-144-2534INTERCHANGEABLE
FUSE,PLUG
5920-00-224-4331INTERCHANGEABLE
FUSE,PLUG
5920-00-240-4117INTERCHANGEABLE
FUSE,PLUG
T30
5920-00-240-4129INTERCHANGEABLE
FUSE,PLUG
5920-00-270-5136INTERCHANGEABLE
FUSE,PLUG
5920-00-284-6452INTERCHANGEABLE
FUSE,PLUG
5920-00-296-0482INTERCHANGEABLE
FUSE,PLUG
5920-00-356-2197INTERCHANGEABLE
FUSE,PLUG
5920-00-538-4951INTERCHANGEABLE
FUSE,PLUG
5920-00-564-3535INTERCHANGEABLE
FUSE,PLUG
5920-00-564-3537INTERCHANGEABLE
FUSE,PLUG
5920-00-683-5515INTERCHANGEABLE
FUSE,PLUG

Frequently Asked Questions

What is NSN 5920-00-931-4231?

NSN 5920-00-931-4231 is a Fuse,plug, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5920 (No Item Name Available). Status: active.

What are the part numbers for NSN 5920-00-931-4231?

NSN 5920-00-931-4231 has 5 cross-referenced part numbers: W-F-791/2 (Federal Specifications Promulgated by General Services Administration Washington DC), AA55473-10 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA55473 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), WF791/2-009 (Federal Specifications Promulgated by General Services Administration Washington DC), F14B125V1-4-10A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5920-00-931-4231?

There are 12 known substitutes for 5920-00-931-4231: 5920-00-144-2534, 5920-00-224-4331, 5920-00-240-4117 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W-F-791/2?

Key specifications for W-F-791/2: Overall Length: 1.281 INCHES NOMINAL IN; Specification/standard Data: 81348-W-F-791/2 GOVERNMENT SPECIFICATION; Material: CERAMIC OR GLASS OR PLASTIC CASE; Test Data Document: 81348-W-F-791 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.).. 12 total characteristics are documented in the Federal Logistics Information System.

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