PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

421-40Fuse,cartridge

Heathkit Co Inc Dba Heathkit Educational Systems · NSN 5920-01-189-5714 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-189-5714 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-189-5714. Primary manufacturer part number: 421-40.
Features
  • Fuse,cartridge — FSC 5920
  • 1 verified cross-reference
  • Primary manufacturer: Heathkit Co Inc Dba Heathkit Educational Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-01-189-5714, 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 Heathkit Co Inc Dba Heathkit Educational Systems. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameFuse,cartridge
FSC / FSG5920 — No Item Name Available (FSG 59)
ManufacturersHeathkit Co Inc Dba Heathkit Educational Systems (CAGE 88273)
Technical Specifications
ParameterValue
NSN5920-01-189-5714
Primary Part Number421-40
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerHeathkit Co Inc Dba Heathkit Educational Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-374-0575 INTERCHANGEABLE
Gasket
2530-00-452-87433109109A INTERCHANGEABLE
Conduit Asy Cable
Chrysler Corp Engine and Components Sales Diversified Products Div
5305-00-476-7387 INTERCHANGEABLE
Screw,tapping
5950-01-005-9669325073-1 INTERCHANGEABLE
Transformer,audio Frequency
Raytheon Company
5930-01-146-554442140 INTERCHANGEABLE
Switch,pressure
Hydra-Electric Company Dba Hydra-Electric Co
5305-01-162-5292N42140 INTERCHANGEABLE
Screw,hand
Leslie Controls, Inc. Dba Leslie Controls Inc
6660-01-173-2315435-89-00025 INTERCHANGEABLE
Meteorological Data Display Set
U S Dept of Transportation Federal Aviation Administration
6240-01-365-7996MVR1500/HBD/E INTERCHANGEABLE
Lamp,metal Halide
General Electric Company Dba Ge
3010-01-516-705142140 INTERCHANGEABLE
Housing,mechanical Actuator
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
421-40 PRIMARY Heathkit Co Inc Dba Heathkit Educational Systems (USA)
Related Parts
5330-00-374-0575INTERCHANGEABLE
GASKET
2530-00-452-8743INTERCHANGEABLE
CONDUIT ASY CABLE
3109109A
5305-00-476-7387INTERCHANGEABLE
SCREW,TAPPING
5950-01-005-9669INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
325073-1
5930-01-146-5544INTERCHANGEABLE
SWITCH,PRESSURE
42140
5305-01-162-5292INTERCHANGEABLE
SCREW,HAND
N42140
6660-01-173-2315INTERCHANGEABLE
METEOROLOGICAL DATA DISPLAY SET
435-89-00025
6240-01-365-7996INTERCHANGEABLE
LAMP,METAL HALIDE
MVR1500/HBD/E
3010-01-516-7051INTERCHANGEABLE
HOUSING,MECHANICAL ACTUATOR
42140

Frequently Asked Questions

What is NSN 5920-01-189-5714?

NSN 5920-01-189-5714 is a Fuse,cartridge, manufactured by Heathkit Co Inc Dba Heathkit Educational Systems, classified under FSC 5920 (No Item Name Available). Status: active.

What are the part numbers for NSN 5920-01-189-5714?

NSN 5920-01-189-5714 has 1 cross-referenced part number: 421-40 (Heathkit Co Inc Dba Heathkit Educational Systems).

What NSN replaces 5920-01-189-5714?

There are 9 known substitutes for 5920-01-189-5714: 5330-00-374-0575, 2530-00-452-8743, 5305-00-476-7387 and 6 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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