PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

276005Fuse,cartridge

Littelfuse, Inc. · NSN 5920-00-221-8371 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-221-8371 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-221-8371. Primary manufacturer part number: 276005.
Features
  • Fuse,cartridge — FSC 5920
  • Features Provided: NONRENEWABLE FUSIBLE ELEMENT
  • Precious Material and Location: CONTACT SURFACES SILVER
  • Maximum Voltage Rating in Volts: 125.0 AC AND 125.0 DC
  • Interruption Indicator Method: OPAQUE BODY
  • Terminal Diameter: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
  • Continuous Current Rating in Amps: 5.000
  • Terminal Length: 1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
Applications
  • Applications requiring Copper Terminal construction
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-00-221-8371, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 25 commercial cross-references from 18 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
NSN5920-00-221-8371
Primary Part Number276005
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerLittelfuse, Inc.
StatusCANCELLED
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Precious Material and LocationCONTACT SURFACES SILVER
Maximum Voltage Rating in Volts125.0 AC AND 125.0 DC
Interruption Indicator MethodOPAQUE BODY
Terminal Diameter0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
Continuous Current Rating in Amps5.000
Terminal Length1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
Overall Diameter0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
Circuit Over-Current Interruption TypeNORMAL INSTANTANEOUS
MaterialCOPPER TERMINAL
MaterialCERAMIC OR GLASS CASE
Specification/standard Data81349-MIL-F-23419/4 GOVERNMENT SPECIFICATION
Surface TreatmentSOLDER TERMINAL
Body StylePIGTAIL TYPE
Precious MaterialSILVER
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.).
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5920-00-004-0274 INTERCHANGEABLE
Fuse,cartridge
5950-00-061-3036 INTERCHANGEABLE
Coil,radio Frequency
6920-00-076-0450 INTERCHANGEABLE
Spinner,turbine
5920-00-172-5124 INTERCHANGEABLE
Fuse,cartridge
5920-00-175-4577 INTERCHANGEABLE
Fuse,cartridge
5920-00-175-5967 INTERCHANGEABLE
Fuse,cartridge
5945-00-184-9663 INTERCHANGEABLE
Relay,electromagnetic
5945-00-189-86657251 INTERCHANGEABLE
Relay,electromagnetic
Telemechanics Inc
5940-00-192-99621390 INTERCHANGEABLE
Terminal Board
Birnbach Co Inc
5136-00-197-95567252 INTERCHANGEABLE
Die,rethreading
Stanley Tools Div of Stanley Works
Cross-Reference Index
Part NumberManufacturer
276005 Littelfuse, Inc. (USA)
FM04-277-005 Calcomp Inc (USA)
SP1-5A San-O Industrial Corp (USA)
LVT2912.02-141210 Diehl Defence Gmbh & Co. Kg (DEU)
65-5214E02 Motorola Communications Group Parts Dept Div of Motorola Inc (USA)
7117021-4 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
5920PL1205413 Jednolity Indeks Materialowy - Uniform Material Index (POL)
65-5214E05 Motorola Solutions, Inc. Dba Motorola Solutions, Inc Div U.s. Federal Government Markets Region (USA)
MIL-PRF-23419/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
264-0964-010 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
MIL-F-23419/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
FM04A125V5A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
FM04-5A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
159-0194-00 Tektronix, Inc. (USA)
2110-0711 Hewlett-Packard Company Dba HP (USA)
FM04125V5A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4133800-84 Raytheon Company Div Rmd Strategic (USA)
070-1021 Unitron Inc (USA)
7251 Adatek Inc (USA)
277005 Littelfuse, Inc. (USA)
Related Parts
5920-00-004-0274INTERCHANGEABLE
FUSE,CARTRIDGE
5950-00-061-3036INTERCHANGEABLE
COIL,RADIO FREQUENCY
6920-00-076-0450INTERCHANGEABLE
SPINNER,TURBINE
5920-00-172-5124INTERCHANGEABLE
FUSE,CARTRIDGE
5920-00-175-4577INTERCHANGEABLE
FUSE,CARTRIDGE
5920-00-175-5967INTERCHANGEABLE
FUSE,CARTRIDGE
5945-00-184-9663INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-189-8665INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
7251
5940-00-192-9962INTERCHANGEABLE
TERMINAL BOARD
1390
5136-00-197-9556INTERCHANGEABLE
DIE,RETHREADING
7252
3455-00-231-3514INTERCHANGEABLE
CUTTER,MILLING,HALF SIDE
58-10110
5920-00-236-8150INTERCHANGEABLE
FUSE,CARTRIDGE

Frequently Asked Questions

What is NSN 5920-00-221-8371?

NSN 5920-00-221-8371 is a Fuse,cartridge, manufactured by Littelfuse, Inc., classified under FSC 5920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5920-00-221-8371?

NSN 5920-00-221-8371 has 25 cross-referenced part numbers: 276005 (Littelfuse, Inc.), FM04-277-005 (Calcomp Inc), SP1-5A (San-O Industrial Corp), LVT2912.02-141210 (Diehl Defence Gmbh & Co. Kg), 65-5214E02 (Motorola Communications Group Parts Dept Div of Motorola Inc) and 20 more.

What NSN replaces 5920-00-221-8371?

There are 12 known substitutes for 5920-00-221-8371: 5920-00-004-0274, 5950-00-061-3036, 6920-00-076-0450 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 276005?

Key specifications for 276005: Features Provided: NONRENEWABLE FUSIBLE ELEMENT; Precious Material and Location: CONTACT SURFACES SILVER; Maximum Voltage Rating in Volts: 125.0 AC AND 125.0 DC; Overall Length: 0.251 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-00-221-8371 still in active supply?

NSN 5920-00-221-8371 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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