PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

312003Fuse,cartridge

Littelfuse, Inc. · NSN 5920-00-878-5573 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-878-5573 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-878-5573. Primary manufacturer part number: 312003.
Features
  • Fuse,cartridge — FSC 5920
  • Features Provided: NONRENEWABLE FUSIBLE ELEMENT
  • Circuit Over-Current Interruption Type: NORMAL INSTANTANEOUS
  • Material: GLASS CASE
  • Surface Treatment: SILVER TERMINAL
  • Body Style: TUBE TYPE
  • Interruption Indicator Method: VISIBLE ELEMENT
  • Maximum Voltage Rating in Volts: 250.0 AC AND 250.0 DC
Applications
  • Applications requiring Glass Case construction
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-00-878-5573, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5920-00-878-5573
Primary Part Number312003
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerLittelfuse, Inc.
StatusACTIVE
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Circuit Over-Current Interruption TypeNORMAL INSTANTANEOUS
MaterialGLASS CASE
Surface TreatmentSILVER TERMINAL
Body StyleTUBE TYPE
Interruption Indicator MethodVISIBLE ELEMENT
Maximum Voltage Rating in Volts250.0 AC AND 250.0 DC
Continuous Current Rating in Amps3.000
Special Test FeaturesFLEET BALLISTIC MISSLE QUALITYAS IDENTIFIED BY QUALITY CONTROL NO. POSO 912689
Overall Diameter0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5920-00-010-6652 INTERCHANGEABLE
Fuse,cartridge
5920-00-356-21991043 INTERCHANGEABLE
Fuse,cartridge
Littelfuse, Inc.
5920-00-463-3372HY10LJ003 INTERCHANGEABLE
Fuse
Carrier Corp
5920-01-286-1891312003 INTERCHANGEABLE
Fuse,cartridge
Littelfuse, Inc.
4820-01-328-2764312-003 INTERCHANGEABLE
Valve,globe
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
4720-01-422-8313 INTERCHANGEABLE
Hose,air Duct
Cross-Reference Index
Part NumberManufacturer
312003 Littelfuse, Inc. (USA)
Related Parts
5920-00-010-6652INTERCHANGEABLE
FUSE,CARTRIDGE
5920-00-356-2199INTERCHANGEABLE
FUSE,CARTRIDGE
1043
5920-00-463-3372INTERCHANGEABLE
FUSE
HY10LJ003
5920-01-286-1891INTERCHANGEABLE
FUSE,CARTRIDGE
312003
4820-01-328-2764INTERCHANGEABLE
VALVE,GLOBE
312-003
4720-01-422-8313INTERCHANGEABLE
HOSE,AIR DUCT

Frequently Asked Questions

What is NSN 5920-00-878-5573?

NSN 5920-00-878-5573 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 5920-00-878-5573?

NSN 5920-00-878-5573 has 1 cross-referenced part number: 312003 (Littelfuse, Inc.).

What NSN replaces 5920-00-878-5573?

There are 6 known substitutes for 5920-00-878-5573: 5920-00-010-6652, 5920-00-356-2199, 5920-00-463-3372 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 312003?

Key specifications for 312003: Overall Length: 1.250 INCHES NOMINAL IN; Features Provided: NONRENEWABLE FUSIBLE ELEMENT; Circuit Over-Current Interruption Type: NORMAL INSTANTANEOUS; Material: GLASS CASE. 11 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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