PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WF791Fuse,plug

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5920-00-240-4129 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-240-4129 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-240-4129. Primary manufacturer part number: WF791.
Features
  • Fuse,plug — FSC 5920
  • Overall Diameter: 1.187 INCHES NOMINAL IN
  • Interruption Indicator Method: VISIBLE ELEMENT
  • Circuit Over-Current Interruption Type: TIME DELAY
  • Terminal Length: 0.812 INCHES NOMINAL IN
  • Circuit Over-Current Interruption Delay Time in Seconds: 34.0 250 PCT OF CURRENT RATING AND 8.5 400 PCT OF CURRENT RATING
  • Maximum Voltage Rating in Volts: 125.0 AC
  • Continuous Current Rating in Amps: 3.200
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fuse,plug, cataloged under National Stock Number 5920-00-240-4129, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 8 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
NSN5920-00-240-4129
Primary Part NumberWF791
Item NameFuse,plug
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Overall Diameter1.187 INCHES NOMINAL IN
Interruption Indicator MethodVISIBLE ELEMENT
Circuit Over-Current Interruption TypeTIME DELAY
Terminal Length0.812 INCHES NOMINAL IN
Circuit Over-Current Interruption Delay Time in Seconds34.0 250 PCT OF CURRENT RATING AND 8.5 400 PCT OF CURRENT RATING
Maximum Voltage Rating in Volts125.0 AC
Continuous Current Rating in Amps3.200
Body StyleEDISON BASE
Surface TreatmentNICKEL TERMINAL
Nondefinitive Spec/std Data2 TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5920-00-144-2534 INTERCHANGEABLE
Fuse,plug
5220-00-144-578282200 INTERCHANGEABLE
Gage,stretch Measur
Curtiss-Wright Controls, Inc. Div Actuation Division
5920-00-224-4331 INTERCHANGEABLE
Fuse,plug
5920-00-284-6452 INTERCHANGEABLE
Fuse,plug
5920-00-296-0482 INTERCHANGEABLE
Fuse,plug
5920-00-564-3535 INTERCHANGEABLE
Fuse,plug
5920-00-564-3537 INTERCHANGEABLE
Fuse,plug
6625-00-589-863782200 INTERCHANGEABLE
Ammeter
Stewart-Warner Corporation
5920-00-683-5515 INTERCHANGEABLE
Fuse,plug
5920-00-729-3722 INTERCHANGEABLE
Fuse,plug
Cross-Reference Index
Part NumberManufacturer
WF791 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AA55473-18 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-55473 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
7032 Cooper Bussmann, Llc Dba Cooper Industries (USA)
W-F-831 TY2 General Services Administration Federal Supply Service (USA)
103284 American Telephone and Telegraph Co (USA)
W-F-831 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
WF791/2-017 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
82200 Cae Usa Inc. (USA)
103284 At and T Corp (USA)
T3-2-10 Cooper Bussmann, Llc Dba Cooper Industries (USA)
F14B125V3-2-10A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5920-00-144-2534INTERCHANGEABLE
FUSE,PLUG
5220-00-144-5782INTERCHANGEABLE
GAGE,STRETCH MEASUR
82200
5920-00-224-4331INTERCHANGEABLE
FUSE,PLUG
5920-00-284-6452INTERCHANGEABLE
FUSE,PLUG
5920-00-296-0482INTERCHANGEABLE
FUSE,PLUG
5920-00-564-3535INTERCHANGEABLE
FUSE,PLUG
5920-00-564-3537INTERCHANGEABLE
FUSE,PLUG
6625-00-589-8637INTERCHANGEABLE
AMMETER
82200
5920-00-683-5515INTERCHANGEABLE
FUSE,PLUG
5920-00-729-3722INTERCHANGEABLE
FUSE,PLUG
5920-00-845-3389INTERCHANGEABLE
FUSE,PLUG
5920-00-866-3363INTERCHANGEABLE
FUSE,PLUG

Frequently Asked Questions

What is NSN 5920-00-240-4129?

NSN 5920-00-240-4129 is a Fuse,plug, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5920-00-240-4129?

NSN 5920-00-240-4129 has 12 cross-referenced part numbers: WF791 (Federal Specifications Promulgated by General Services Administration Washington DC), AA55473-18 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-55473 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 7032 (Cooper Bussmann, Llc Dba Cooper Industries), W-F-831 TY2 (General Services Administration Federal Supply Service) and 7 more.

What NSN replaces 5920-00-240-4129?

There are 12 known substitutes for 5920-00-240-4129: 5920-00-144-2534, 5220-00-144-5782, 5920-00-224-4331 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of WF791?

Key specifications for WF791: Overall Diameter: 1.187 INCHES NOMINAL IN; Interruption Indicator Method: VISIBLE ELEMENT; Circuit Over-Current Interruption Type: TIME DELAY; Terminal Length: 0.812 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-00-240-4129 still in active supply?

NSN 5920-00-240-4129 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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