PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

351009FUSEBL0CKFuseholder,block

Littelfuse, Inc. · NSN 5920-00-240-4101 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-240-4101 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-240-4101. Primary manufacturer part number: 351009FUSEBL0CK.
Features
  • Fuseholder,block — FSC 5920
  • Coating Method: PLATED CONTACT
  • Surface Treatment: NICKEL TERMINAL
  • Current Carrying Rating in Amps: 50.0
  • Coating Method: PLATED TERMINAL
  • Fuse Accommodation Quantity: 2
  • Mounting Hole Style: IN-LINE ALONG THE LENGTH
  • Accommodated Fuse Length: 1.250 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy 511 Terminal construction
General Description

The Fuseholder,block, cataloged under National Stock Number 5920-00-240-4101, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5920-00-240-4101
Primary Part Number351009FUSEBL0CK
Item NameFuseholder,block
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerLittelfuse, Inc.
StatusCANCELLED
Coating MethodPLATED CONTACT
Surface TreatmentNICKEL TERMINAL
Current Carrying Rating in Amps50.0
Coating MethodPLATED TERMINAL
Fuse Accommodation Quantity2
Mounting Hole StyleIN-LINE ALONG THE LENGTH
Accommodated Fuse Length1.250 INCHES NOMINAL IN
Body Height1.125 INCHES NOMINAL IN
Center to Center Distance Between Outside Mounting Holes Along Length2.125 INCHES NOMINAL IN
Accommodated Ferrule Diameter0.500 INCHES NOMINAL IN
Mounting Hole Quantity2
Mounting Hole Diameter0.156 INCHES NOMINAL IN
Body StyleBLOCK-SIGNAL INDICATING
MaterialCOPPER ALLOY 511 TERMINAL
Voltage in Volts250.0
Surface TreatmentNICKEL CONTACT
MaterialPLASTIC BODY
Terminal Type and Quantity4 TAB, SOLDER LUG
MaterialCOPPER ALLOY 511 CONTACT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5945-00-063-528690528 INTERCHANGEABLE
Relay,electromagnetic
B.c. Systems Inc. Dba Bc Systems Inc
4920-01-006-591035100-9 INTERCHANGEABLE
Tool,boresight Reference,head Up
Rockwell Collins, Inc. Dba Rc Displays Systems
2915-01-224-074720105030 INTERCHANGEABLE
Module Kit,servo VA
Woodward Hrt Inc
5340-01-664-8011351009 INTERCHANGEABLE
Clamp,loop
Brp Us Inc
Cross-Reference Index
Part NumberManufacturer
351009FUSEBL0CK PRIMARY Littelfuse, Inc. (USA)
351009 PRIMARY Littelfuse, Inc. (USA)
G351009CHANGEG PRIMARY Littelfuse, Inc. (USA)
Related Parts
5945-00-063-5286INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
90528
4920-01-006-5910INTERCHANGEABLE
TOOL,BORESIGHT REFERENCE,HEAD UP
35100-9
2915-01-224-0747INTERCHANGEABLE
MODULE KIT,SERVO VA
20105030
5340-01-664-8011INTERCHANGEABLE
CLAMP,LOOP
351009

Frequently Asked Questions

What is NSN 5920-00-240-4101?

NSN 5920-00-240-4101 is a Fuseholder,block, manufactured by Littelfuse, Inc., classified under FSC 5920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5920-00-240-4101?

NSN 5920-00-240-4101 has 3 cross-referenced part numbers: 351009FUSEBL0CK (Littelfuse, Inc.), 351009 (Littelfuse, Inc.), G351009CHANGEG (Littelfuse, Inc.).

What NSN replaces 5920-00-240-4101?

There are 4 known substitutes for 5920-00-240-4101: 5945-00-063-5286, 4920-01-006-5910, 2915-01-224-0747 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 351009FUSEBL0CK?

Key specifications for 351009FUSEBL0CK: Coating Method: PLATED CONTACT; Surface Treatment: NICKEL TERMINAL; Current Carrying Rating in Amps: 50.0; Coating Method: PLATED TERMINAL. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-00-240-4101 still in active supply?

NSN 5920-00-240-4101 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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