PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

X6608-4Fuse,cartridge

Littelfuse, Inc. · NSN 5920-01-083-3748 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-083-3748 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-083-3748. Primary manufacturer part number: X6608-4.
Features
  • Fuse,cartridge — FSC 5920
  • Specification/standard Data: 81349-MIL-PRF-23419/8 GOVERNMENT SPECIFICATION
  • Test Data Document: 81349-MIL-PRF-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.).
  • Surface Treatment: GOLD TERMINAL
  • Features Provided: NONRENEWABLE FUSIBLE ELEMENT
  • Precious Material and Location: TERMINAL SURFACE GOLD
  • Interruption Indicator Method: OPAQUE BODY
  • Overall Diameter: 0.093 INCHES NOMINAL IN
Applications
  • Applications requiring Ceramic or Glass Case construction
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-01-083-3748, 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 15 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: Cancelled.

Technical Specifications
ParameterValue
NSN5920-01-083-3748
Primary Part NumberX6608-4
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerLittelfuse, Inc.
StatusCANCELLED
Specification/standard Data81349-MIL-PRF-23419/8 GOVERNMENT SPECIFICATION
Test Data Document81349-MIL-PRF-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.).
Surface TreatmentGOLD TERMINAL
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Precious Material and LocationTERMINAL SURFACE GOLD
Interruption Indicator MethodOPAQUE BODY
Overall Diameter0.093 INCHES NOMINAL IN
Maximum Voltage Rating in Volts125.0 AC AND 125.0 DC
Circuit Over-Current Interruption TypeNORMAL INSTANTANEOUS
Terminal Diameter0.025 INCHES NOMINAL IN
Terminal Length1.500 INCHES NOMINAL IN
Continuous Current Rating in Amps0.500
Precious MaterialGOLD
MaterialCERAMIC OR GLASS CASE
Body StylePIGTAIL TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1220-00-159-0503654719 INTERCHANGEABLE
Reticule
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
1430-00-920-1512265500 INTERCHANGEABLE
Chassis Assembly,re
Raytheon Company Dba Raytheon Co
5920-01-083-3747 INTERCHANGEABLE
Fuse,cartridge
5920-01-083-3749 INTERCHANGEABLE
Fuse,cartridge
5920-01-085-5490 INTERCHANGEABLE
Fuse,cartridge
5920-01-104-3919 INTERCHANGEABLE
Fuse,cartridge
5920-01-112-2446 INTERCHANGEABLE
Fuse,cartridge
5920-01-115-7222 INTERCHANGEABLE
Fuse,cartridge
5920-01-175-8183 INTERCHANGEABLE
Fuse,cartridge
5920-01-175-8184 INTERCHANGEABLE
Fuse,cartridge
Cross-Reference Index
Part NumberManufacturer
X6608-4 Littelfuse, Inc. (USA)
2435570-4 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
MIL-PRF-23419/8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
265-500 Littelfuse, Inc. (USA)
FM08A125V1/2A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
1220-00-159-0503INTERCHANGEABLE
RETICULE
654719
1430-00-920-1512INTERCHANGEABLE
CHASSIS ASSEMBLY,RE
265500
5920-01-083-3747INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-083-3749INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-085-5490INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-104-3919INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-112-2446INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-115-7222INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-175-8183INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-175-8184INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-187-7969INTERCHANGEABLE
FUSE,CARTRIDGE
5920-01-245-9650INTERCHANGEABLE
FUSE,CARTRIDGE

Frequently Asked Questions

What is NSN 5920-01-083-3748?

NSN 5920-01-083-3748 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 5920-01-083-3748?

NSN 5920-01-083-3748 has 5 cross-referenced part numbers: X6608-4 (Littelfuse, Inc.), 2435570-4 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems), MIL-PRF-23419/8 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 265-500 (Littelfuse, Inc.), FM08A125V1/2A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5920-01-083-3748?

There are 12 known substitutes for 5920-01-083-3748: 1220-00-159-0503, 1430-00-920-1512, 5920-01-083-3747 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of X6608-4?

Key specifications for X6608-4: Specification/standard Data: 81349-MIL-PRF-23419/8 GOVERNMENT SPECIFICATION; Test Data Document: 81349-MIL-PRF-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.).; Surface Treatment: GOLD TERMINAL; Features Provided: NONRENEWABLE FUSIBLE ELEMENT. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-01-083-3748 still in active supply?

NSN 5920-01-083-3748 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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