PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

78999Fuse,cartridge

International Business Machines Corp Parts Order Center Dept E - 54 · NSN 5920-00-431-4710 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-431-4710 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-431-4710. Primary manufacturer part number: 78999.
Features
  • Fuse,cartridge — FSC 5920
  • Surface Treatment: NICKEL TERMINAL
  • Circuit Over-Current Interruption Type: TIME DELAY
  • Features Provided: NONRENEWABLE FUSIBLE ELEMENT
  • Overall Diameter: 0.250 INCHES NOMINAL IN
  • Maximum Voltage Rating in Volts: 250.0 AC AND 250.0 DC
  • Interruption Indicator Method: VISIBLE ELEMENT
  • Circuit Over-Current Interruption Delay Time in Seconds: 25.0 200 PCT OF CURRENT RATING AND 8.0 300 PCT OF CURRENT RATING AND 3.0 400 PCT OF CURRENT RATING
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-00-431-4710, 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 International Business Machines Corp Parts Order Center Dept E - 54. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5920-00-431-4710
Primary Part Number78999
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerInternational Business Machines Corp Parts Order Center Dept E - 54
StatusACTIVE
Surface TreatmentNICKEL TERMINAL
Circuit Over-Current Interruption TypeTIME DELAY
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Overall Diameter0.250 INCHES NOMINAL IN
Maximum Voltage Rating in Volts250.0 AC AND 250.0 DC
Interruption Indicator MethodVISIBLE ELEMENT
Circuit Over-Current Interruption Delay Time in Seconds25.0 200 PCT OF CURRENT RATING AND 8.0 300 PCT OF CURRENT RATING AND 3.0 400 PCT OF CURRENT RATING
Continuous Current Rating in Amps0.500
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6240-00-405-48477377 INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Lighting Products Group Hillsboro Miniature Lamp Plant
5895-01-421-264278999 INTERCHANGEABLE
Recorder,signal Data
Evoqua Water Technologies Llc
4730-01-655-6365246002 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Lincoln Industrial Corporation Div Lincoln Industrial Corporation
Cross-Reference Index
Part NumberManufacturer
78999 PRIMARY International Business Machines Corp Parts Order Center Dept E - 54 (USA)
MDL-1/2A PRIMARY Cooper Bussmann, Llc Dba Cooper Industries (USA)
MDL250V1/2A Cooper Bussmann, Llc Dba Cooper Industries (USA)
120-98-00019 L3 Aviation Products, Inc. Dba L3 Technologies (USA)
246-002 Johnson E F Co Comco/communications Co Div (USA)
78999 International Business Machines Corporation Dba IBM (USA)
Related Parts
6240-00-405-4847INTERCHANGEABLE
LAMP,INCANDESCENT
7377
5895-01-421-2642INTERCHANGEABLE
RECORDER,SIGNAL DATA
78999
4730-01-655-6365INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
246002

Frequently Asked Questions

What is NSN 5920-00-431-4710?

NSN 5920-00-431-4710 is a Fuse,cartridge, manufactured by International Business Machines Corp Parts Order Center Dept E - 54, classified under FSC 5920 (No Item Name Available). Status: active.

What are the part numbers for NSN 5920-00-431-4710?

NSN 5920-00-431-4710 has 6 cross-referenced part numbers: 78999 (International Business Machines Corp Parts Order Center Dept E - 54), MDL-1/2A (Cooper Bussmann, Llc Dba Cooper Industries), MDL250V1/2A (Cooper Bussmann, Llc Dba Cooper Industries), 120-98-00019 (L3 Aviation Products, Inc. Dba L3 Technologies), 246-002 (Johnson E F Co Comco/communications Co Div) and 1 more.

What NSN replaces 5920-00-431-4710?

There are 3 known substitutes for 5920-00-431-4710: 6240-00-405-4847, 5895-01-421-2642, 4730-01-655-6365. Verify interchangeability with system specifications before substitution.

What are the specifications of 78999?

Key specifications for 78999: Surface Treatment: NICKEL TERMINAL; Circuit Over-Current Interruption Type: TIME DELAY; Overall Length: 1.250 INCHES NOMINAL IN; Features Provided: NONRENEWABLE FUSIBLE ELEMENT. 9 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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