PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203002Fuse,enclosed Link

Littelfuse, Inc. · NSN 5920-01-425-2321 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-425-2321 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-425-2321. Primary manufacturer part number: 203002.
Features
  • Fuse,enclosed Link — FSC 5920
  • Maximum Voltage Rating in Volts: 250.0 AC
  • Circuit Over-Current Interruption Type: TIME DELAY
  • Interruption Indicator Method: OPAQUE BODY
  • Circuit Over-Current Interruption Delay Time in Seconds: 30.0 200 PCT OF CURRENT RATING
  • Terminal Thickness: 0.021 INCHES NOMINAL IN
  • Continuous Current Rating in Amps: 2.000
  • Terminal Length: 0.110 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fuse,enclosed Link, cataloged under National Stock Number 5920-01-425-2321, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5920-01-425-2321
Primary Part Number203002
Item NameFuse,enclosed Link
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerLittelfuse, Inc.
StatusCANCELLED
Maximum Voltage Rating in Volts250.0 AC
Circuit Over-Current Interruption TypeTIME DELAY
Interruption Indicator MethodOPAQUE BODY
Circuit Over-Current Interruption Delay Time in Seconds30.0 200 PCT OF CURRENT RATING
Terminal Thickness0.021 INCHES NOMINAL IN
Continuous Current Rating in Amps2.000
Terminal Length0.110 INCHES NOMINAL IN
Body StyleLIMITER W/OUT HOLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
6680-00-586-6486 INTERCHANGEABLE
Snubber Set,piston
5935-00-904-1280TBF22-22PS INTERCHANGEABLE
Adapter,connector
Itt Cannon Llc
6625-00-908-0358 INTERCHANGEABLE
Testset,electronicc
5998-01-119-8274203002 INTERCHANGEABLE
Circuit Card Assembly
Marine Electric Systems Inc
5920-01-296-3486 INTERCHANGEABLE
Fuse,enclosed Link
5920-01-331-8620 INTERCHANGEABLE
Fuse,cartridge
3010-01-426-02152-03002 INTERCHANGEABLE
Clutch,positive,nonvehicular
Rockford Powertrain Inc Div Powertrain Rockford, Inc.
5985-01-485-467210513-0200-01 INTERCHANGEABLE
Antenna Group
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
4820-01-504-478359439A2 R01 INTERCHANGEABLE
Valve,check
Flowserve Inc
Cross-Reference Index
Part NumberManufacturer
AA55561/2-006D Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA55561 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
203002 PRIMARY Littelfuse, Inc. (USA)
Related Parts
6680-00-586-6486INTERCHANGEABLE
SNUBBER SET,PISTON
5935-00-904-1280INTERCHANGEABLE
ADAPTER,CONNECTOR
TBF22-22PS
6625-00-908-0358INTERCHANGEABLE
TESTSET,ELECTRONICC
5998-01-119-8274INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
203002
5920-01-296-3486INTERCHANGEABLE
FUSE,ENCLOSED LINK
5920-01-331-8620INTERCHANGEABLE
FUSE,CARTRIDGE
3010-01-426-0215INTERCHANGEABLE
CLUTCH,POSITIVE,NONVEHICULAR
2-03002
5985-01-485-4672INTERCHANGEABLE
ANTENNA GROUP
10513-0200-01
4820-01-504-4783INTERCHANGEABLE
VALVE,CHECK
59439A2 R01

Frequently Asked Questions

What is NSN 5920-01-425-2321?

NSN 5920-01-425-2321 is a Fuse,enclosed Link, manufactured by Littelfuse, Inc., classified under FSC 5920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5920-01-425-2321?

NSN 5920-01-425-2321 has 3 cross-referenced part numbers: AA55561/2-006D (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA55561 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 203002 (Littelfuse, Inc.).

What NSN replaces 5920-01-425-2321?

There are 9 known substitutes for 5920-01-425-2321: 6680-00-586-6486, 5935-00-904-1280, 6625-00-908-0358 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 203002?

Key specifications for 203002: Maximum Voltage Rating in Volts: 250.0 AC; Circuit Over-Current Interruption Type: TIME DELAY; Interruption Indicator Method: OPAQUE BODY; Circuit Over-Current Interruption Delay Time in Seconds: 30.0 200 PCT OF CURRENT RATING. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-01-425-2321 still in active supply?

NSN 5920-01-425-2321 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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