PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

278001Fuse,cartridge

Littelfuse, Inc. · NSN 5920-00-956-4979 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-956-4979 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-956-4979. Primary manufacturer part number: 278001.
Features
  • Fuse,cartridge — FSC 5920
  • Body Style: PLUG-IN TYPE
  • Surface Treatment: SOLDER TERMINAL
  • Material: ALUMINUM CASE
  • Continuous Current Rating in Amps: 1.000
  • Material: COPPER TERMINAL
  • Maximum Voltage Rating in Volts: 125.0 AC AND 125.0 DC
  • Features Provided: NONRENEWABLE FUSIBLE ELEMENT
Applications
  • Applications requiring Aluminum Case construction
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-00-956-4979, 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 Littelfuse, Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5920-00-956-4979
Primary Part Number278001
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerLittelfuse, Inc.
StatusACTIVE
Body StylePLUG-IN TYPE
Surface TreatmentSOLDER TERMINAL
MaterialALUMINUM CASE
Continuous Current Rating in Amps1.000
MaterialCOPPER TERMINAL
Maximum Voltage Rating in Volts125.0 AC AND 125.0 DC
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Interruption Indicator MethodVISIBLE ELEMENT
Overall Diameter0.235 INCHES NOMINAL IN
Body Length0.290 INCHES NOMINAL IN
Terminal Diameter0.025 INCHES NOMINAL IN
Terminal Length1.000 INCHES NOMINAL IN
Circuit Over-Current Interruption TypeNORMAL INSTANTANEOUS
Center to Center Distance Between Mounting Facilities Parallel to Diameter0.100 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5950-00-172-3092SMC604334 INTERCHANGEABLE
Transformer,power
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6680-01-072-279477-907 INTERCHANGEABLE
Switch,liquid Level
Parker Hannifin Corp Dba Pneutronics
4920-01-136-8217278001 INTERCHANGEABLE
Torque Fixture
Honeywell International Inc. Div Aerospace - Torrance
6625-01-247-5582M-3198 INTERCHANGEABLE
Multimeter
Custom Metering Company Inc
Cross-Reference Index
Part NumberManufacturer
PC4832-5 Rockwell Collins, Inc. Dba Rc Displays Systems (USA)
278001 Littelfuse Europe Gmbh (DEU)
278001 PRIMARY Littelfuse, Inc. (USA)
278001 Wickmann Werke Gmbh (DEU)
Related Parts
5950-00-172-3092INTERCHANGEABLE
TRANSFORMER,POWER
SMC604334
6680-01-072-2794INTERCHANGEABLE
SWITCH,LIQUID LEVEL
77-907
4920-01-136-8217INTERCHANGEABLE
TORQUE FIXTURE
278001
6625-01-247-5582INTERCHANGEABLE
MULTIMETER
M-3198

Frequently Asked Questions

What is NSN 5920-00-956-4979?

NSN 5920-00-956-4979 is a Fuse,cartridge, manufactured by Littelfuse, Inc., classified under FSC 5920 (No Item Name Available). Status: active.

What are the part numbers for NSN 5920-00-956-4979?

NSN 5920-00-956-4979 has 4 cross-referenced part numbers: PC4832-5 (Rockwell Collins, Inc. Dba Rc Displays Systems), 278001 (Littelfuse Europe Gmbh), 278001 (Littelfuse, Inc.), 278001 (Wickmann Werke Gmbh).

What NSN replaces 5920-00-956-4979?

There are 4 known substitutes for 5920-00-956-4979: 5950-00-172-3092, 6680-01-072-2794, 4920-01-136-8217 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 278001?

Key specifications for 278001: Body Style: PLUG-IN TYPE; Surface Treatment: SOLDER TERMINAL; Material: ALUMINUM CASE; Continuous Current Rating in Amps: 1.000. 15 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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