PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3321-25Fuse,cartridge

Littelfuse, Inc. · NSN 5920-00-146-5071 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-146-5071 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-146-5071. Primary manufacturer part number: 3321-25.
Features
  • Fuse,cartridge — FSC 5920
  • Circuit Over-Current Interruption Type: NORMAL INSTANTANEOUS
  • Features Provided: NONRENEWABLE FUSIBLE ELEMENT
  • Interruption Indicator Method: OPAQUE BODY
  • Continuous Current Rating in Amps: 1.250
  • Overall Diameter: 0.250 INCHES NOMINAL IN
  • Maximum Voltage Rating in Volts: 250.0 AC AND 250.0 DC
  • Body Diameter: 0.312 INCHES NOMINAL IN
Applications
  • Applications requiring Fiber Case construction
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-00-146-5071, 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 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5920-00-146-5071
Primary Part Number3321-25
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerLittelfuse, Inc.
StatusCANCELLED
Circuit Over-Current Interruption TypeNORMAL INSTANTANEOUS
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Interruption Indicator MethodOPAQUE BODY
Continuous Current Rating in Amps1.250
Overall Diameter0.250 INCHES NOMINAL IN
Maximum Voltage Rating in Volts250.0 AC AND 250.0 DC
Body Diameter0.312 INCHES NOMINAL IN
MaterialFIBER CASE
Surface TreatmentNICKEL TERMINAL
Body StyleTAB TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5940-00-204-50767069367 INTERCHANGEABLE
Terminal,lug
U S Army Tank Automotive Command Amsta-Im-Mm
5325-00-281-67163DC11-4 INTERCHANGEABLE
Ring,retaining
Fwd Seagrave Holdings Lp
3040-00-409-4810332125 INTERCHANGEABLE
Bracket,eye,nonrotating Shaft
Telemechanics Inc
3455-00-541-619713550 INTERCHANGEABLE
Cutter,milling,convex
Niagara Cutter Inc
5360-00-598-87341619359 INTERCHANGEABLE
Spring,helical,compression
Westinghouse Electric Corp
1650-00-834-9397332125 INTERCHANGEABLE
Plate,retaining,piston
Eaton Aerospace, Llc Dba Jackson South
7310-00-985-1406 INTERCHANGEABLE
Pan,electric Frying
5985-01-083-50061275-258 INTERCHANGEABLE
Coupler,directional
Bae Systems Information and Electronic Systems Integration Inc.
6515-01-224-9063 INTERCHANGEABLE
Surgical Pack,disposable
3040-01-328-7175C114 INTERCHANGEABLE
Clamp,hub
Designatronics Incorporated Div Sterling Instruments Div
Cross-Reference Index
Part NumberManufacturer
74906481 Kalmar AC Inc (USA)
3321-25 PRIMARY Littelfuse, Inc. (USA)
C1-1-4 Littelfuse, Inc. (USA)
5143368-00 Cooper Bussmann, Llc Dba Cooper Industries (USA)
5143368-00 Hyster-Yale Group, Inc. Dba Yale Materials Handling (USA)
Related Parts
5940-00-204-5076INTERCHANGEABLE
TERMINAL,LUG
7069367
5325-00-281-6716INTERCHANGEABLE
RING,RETAINING
3DC11-4
3040-00-409-4810INTERCHANGEABLE
BRACKET,EYE,NONROTATING SHAFT
332125
3455-00-541-6197INTERCHANGEABLE
CUTTER,MILLING,CONVEX
13550
5360-00-598-8734INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1619359
1650-00-834-9397INTERCHANGEABLE
PLATE,RETAINING,PISTON
332125
7310-00-985-1406INTERCHANGEABLE
PAN,ELECTRIC FRYING
5985-01-083-5006INTERCHANGEABLE
COUPLER,DIRECTIONAL
1275-258
6515-01-224-9063INTERCHANGEABLE
SURGICAL PACK,DISPOSABLE
3040-01-328-7175INTERCHANGEABLE
CLAMP,HUB
C114

Frequently Asked Questions

What is NSN 5920-00-146-5071?

NSN 5920-00-146-5071 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 5920-00-146-5071?

NSN 5920-00-146-5071 has 5 cross-referenced part numbers: 74906481 (Kalmar AC Inc), 3321-25 (Littelfuse, Inc.), C1-1-4 (Littelfuse, Inc.), 5143368-00 (Cooper Bussmann, Llc Dba Cooper Industries), 5143368-00 (Hyster-Yale Group, Inc. Dba Yale Materials Handling).

What NSN replaces 5920-00-146-5071?

There are 10 known substitutes for 5920-00-146-5071: 5940-00-204-5076, 5325-00-281-6716, 3040-00-409-4810 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3321-25?

Key specifications for 3321-25: Circuit Over-Current Interruption Type: NORMAL INSTANTANEOUS; Features Provided: NONRENEWABLE FUSIBLE ELEMENT; Interruption Indicator Method: OPAQUE BODY; Continuous Current Rating in Amps: 1.250. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-00-146-5071 still in active supply?

NSN 5920-00-146-5071 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.
PartsTable Design LLC · partstable.com