PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W3R3/4Fuse,enclosed Link

Cooper Bussmann, Llc Dba Cooper Industries · NSN 5920-00-221-4554 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-221-4554 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-221-4554. Primary manufacturer part number: W3R3/4.
Features
  • Fuse,enclosed Link — FSC 5920
  • Interruption Indicator Method: OPAQUE BODY
  • Maximum Voltage Rating in Volts: 150.0 AC AND 150.0 DC
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 0.937 INCHES NOMINAL IN
  • Mounting Slot Width: 0.150 INCHES NOMINAL IN
  • Continuous Current Rating in Amps: 0.750
  • Circuit Over-Current Interruption Type: NORMAL INSTANTANEOUS
  • Body Style: SLOTTED LIMITER
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fuse,enclosed Link, cataloged under National Stock Number 5920-00-221-4554, 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 Cooper Bussmann, Llc Dba Cooper Industries. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5920-00-221-4554
Primary Part NumberW3R3/4
Item NameFuse,enclosed Link
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerCooper Bussmann, Llc Dba Cooper Industries
StatusACTIVE
Interruption Indicator MethodOPAQUE BODY
Maximum Voltage Rating in Volts150.0 AC AND 150.0 DC
Center to Center Distance Between Mounting Facilities Parallel to Length0.937 INCHES NOMINAL IN
Mounting Slot Width0.150 INCHES NOMINAL IN
Continuous Current Rating in Amps0.750
Circuit Over-Current Interruption TypeNORMAL INSTANTANEOUS
Body StyleSLOTTED LIMITER
Surface TreatmentNICKEL TERMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6240-00-156-1602 INTERCHANGEABLE
Lamp,incandescent
5305-00-310-0370 INTERCHANGEABLE
Screw,adjusting,bed
6240-00-789-3370 INTERCHANGEABLE
Lamp,incandescent
5120-00-834-3731 INTERCHANGEABLE
Nutdriver
5120-01-307-4117 INTERCHANGEABLE
Trowel
Cross-Reference Index
Part NumberManufacturer
24D American Telephone and Telegraph Co (USA)
W3R3/4 PRIMARY Cooper Bussmann, Llc Dba Cooper Industries (USA)
Related Parts
6240-00-156-1602INTERCHANGEABLE
LAMP,INCANDESCENT
5305-00-310-0370INTERCHANGEABLE
SCREW,ADJUSTING,BED
6240-00-789-3370INTERCHANGEABLE
LAMP,INCANDESCENT
5120-00-834-3731INTERCHANGEABLE
NUTDRIVER
5120-01-307-4117INTERCHANGEABLE
TROWEL

Frequently Asked Questions

What is NSN 5920-00-221-4554?

NSN 5920-00-221-4554 is a Fuse,enclosed Link, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5920 (No Item Name Available). Status: active.

What are the part numbers for NSN 5920-00-221-4554?

NSN 5920-00-221-4554 has 2 cross-referenced part numbers: 24D (American Telephone and Telegraph Co), W3R3/4 (Cooper Bussmann, Llc Dba Cooper Industries).

What NSN replaces 5920-00-221-4554?

There are 5 known substitutes for 5920-00-221-4554: 6240-00-156-1602, 5305-00-310-0370, 6240-00-789-3370 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W3R3/4?

Key specifications for W3R3/4: Overall Height: 0.050 INCHES NOMINAL IN; Interruption Indicator Method: OPAQUE BODY; Maximum Voltage Rating in Volts: 150.0 AC AND 150.0 DC; Center to Center Distance Between Mounting Facilities Parallel to Length: 0.937 INCHES NOMINAL IN. 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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