PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R145WFuse,plug

Leeds and Northrup Co a Unit of General Signal Corp · NSN 5920-00-284-6449 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-284-6449 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-284-6449. Primary manufacturer part number: R145W.
Features
  • Fuse,plug — FSC 5920
  • Interruption Indicator Method: VISIBLE ELEMENT
  • Continuous Current Rating in Amps: 3.000
  • Circuit Over-Current Interruption Delay Time in Seconds: 30.0 200 PCT OF CURRENT RATING
  • Maximum Voltage Rating in Volts: 125.0 AC AND 125.0 DC
  • Circuit Over-Current Interruption Type: TIME DELAY
  • Material: CERAMIC CASE
  • Body Style: EDISON BASE
Applications
  • Applications requiring Ceramic Case construction
General Description

The Fuse,plug, cataloged under National Stock Number 5920-00-284-6449, 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 Leeds and Northrup Co a Unit of General Signal Corp. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5920-00-284-6449
Primary Part NumberR145W
Item NameFuse,plug
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerLeeds and Northrup Co a Unit of General Signal Corp
StatusACTIVE
Interruption Indicator MethodVISIBLE ELEMENT
Continuous Current Rating in Amps3.000
Circuit Over-Current Interruption Delay Time in Seconds30.0 200 PCT OF CURRENT RATING
Maximum Voltage Rating in Volts125.0 AC AND 125.0 DC
Circuit Over-Current Interruption TypeTIME DELAY
MaterialCERAMIC CASE
Body StyleEDISON BASE
Overall Diameter1.250 INCHES NOMINAL IN
Terminal Length0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5910-00-013-95925703 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Knowles Cazenovia, Inc. Div Johanson Manufacturing
5330-00-074-25975703 INTERCHANGEABLE
Packing,preformed
L and L Fab Co Lo-Lift Pallet Truck Mfg
5975-00-098-0131 INTERCHANGEABLE
Support,electrical
5965-00-170-4827 INTERCHANGEABLE
Microphone Element
5960-00-230-5330 INTERCHANGEABLE
Electron Tube
5110-00-289-8659 INTERCHANGEABLE
Shears,metal Cutting,hand
2990-00-441-81051109 INTERCHANGEABLE
Muffler,exhaust
Merit Industries Inc
5835-01-130-8052 INTERCHANGEABLE
Head,magnetic
2030-01-268-9518 INTERCHANGEABLE
Cylinder Pivot Head
5310-01-297-1059 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
R145W Leeds and Northrup Co a Unit of General Signal Corp (USA)
777127 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
5703 Federal Pacific Electric Co Economy Fuse Div (USA)
Related Parts
5910-00-013-9592INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
5703
5330-00-074-2597INTERCHANGEABLE
PACKING,PREFORMED
5703
5975-00-098-0131INTERCHANGEABLE
SUPPORT,ELECTRICAL
5965-00-170-4827INTERCHANGEABLE
MICROPHONE ELEMENT
5960-00-230-5330INTERCHANGEABLE
ELECTRON TUBE
5110-00-289-8659INTERCHANGEABLE
SHEARS,METAL CUTTING,HAND
2990-00-441-8105INTERCHANGEABLE
MUFFLER,EXHAUST
1109
5835-01-130-8052INTERCHANGEABLE
HEAD,MAGNETIC
2030-01-268-9518INTERCHANGEABLE
CYLINDER PIVOT HEAD
5310-01-297-1059INTERCHANGEABLE
NUT,PLAIN,HEXAGON
4440-01-307-6546INTERCHANGEABLE
DEHYDRATOR UNIT,NONREACTIVATING
5505 MARK III

Frequently Asked Questions

What is NSN 5920-00-284-6449?

NSN 5920-00-284-6449 is a Fuse,plug, manufactured by Leeds and Northrup Co a Unit of General Signal Corp, classified under FSC 5920 (No Item Name Available). Status: active.

What are the part numbers for NSN 5920-00-284-6449?

NSN 5920-00-284-6449 has 3 cross-referenced part numbers: R145W (Leeds and Northrup Co a Unit of General Signal Corp), 777127 (Lockheed Martin Corporation Div Rms - Mitchel Field), 5703 (Federal Pacific Electric Co Economy Fuse Div).

What NSN replaces 5920-00-284-6449?

There are 11 known substitutes for 5920-00-284-6449: 5910-00-013-9592, 5330-00-074-2597, 5975-00-098-0131 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R145W?

Key specifications for R145W: Overall Length: 1.203 INCHES NOMINAL IN; Interruption Indicator Method: VISIBLE ELEMENT; Continuous Current Rating in Amps: 3.000; Circuit Over-Current Interruption Delay Time in Seconds: 30.0 200 PCT OF CURRENT RATING. 10 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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