PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3966B-2Fuse,cartridge

Howell Laboratories Inc Dba Howell Laboratories Inc · NSN 5920-01-209-1738 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-209-1738 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-209-1738. Primary manufacturer part number: 3966B-2.
Features
  • Fuse,cartridge — FSC 5920
  • Circuit Over-Current Interruption Delay Time in Seconds: 5.5 200 PCT OF CURRENT RATING
  • Features Provided: NONRENEWABLE FUSIBLE ELEMENT
  • Continuous Current Rating in Amps: 5.000
  • Maximum Voltage Rating in Volts: 250.0 AC
  • Interruption Indicator Method: VISIBLE ELEMENT
  • Circuit Over-Current Interruption Type: TIME DELAY
  • Overall Diameter: 0.275 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-01-209-1738, 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 Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5920-01-209-1738
Primary Part Number3966B-2
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerHowell Laboratories Inc Dba Howell Laboratories Inc
StatusCANCELLED
Circuit Over-Current Interruption Delay Time in Seconds5.5 200 PCT OF CURRENT RATING
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Continuous Current Rating in Amps5.000
Maximum Voltage Rating in Volts250.0 AC
Interruption Indicator MethodVISIBLE ELEMENT
Circuit Over-Current Interruption TypeTIME DELAY
Overall Diameter0.275 INCHES NOMINAL IN
Body StyleTUBE TYPE
Surface TreatmentCOPPER ALLOY TERMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
4720-00-145-62583130-05 INTERCHANGEABLE
Hose,nonmetallic
Eaton Corp
5815-00-252-2775313005 INTERCHANGEABLE
Keytop,keyboard
Telemechanics Inc
5920-00-270-517916750231-034 INTERCHANGEABLE
Fuse,cartridge
Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services
5920-00-280-5066 INTERCHANGEABLE
Fuse,cartridge
5920-00-775-2273 INTERCHANGEABLE
Fuse,cartridge
1560-00-859-71083-13000-5 INTERCHANGEABLE
Windshield Panel,aircraft
Northrop Grumman Systems Corporation
5920-01-474-5150430-0124 INTERCHANGEABLE
Fuse,cartridge
Cyberchron Corporation
5920-01-596-5716313.005 INTERCHANGEABLE
Fuse,cartridge,spec
Littelfuse, Inc.
4720-01-611-8480313005 INTERCHANGEABLE
Hose,nonmetallic
Stinar, Llc
Cross-Reference Index
Part NumberManufacturer
MDX5 Cooper Bussmann, Llc Dba Cooper Industries (USA)
10018550-128 Us Army Aviation and Missile Command (USA)
3966B-2 PRIMARY Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
313005 PRIMARY Littelfuse, Inc. (USA)
Related Parts
4720-00-145-6258INTERCHANGEABLE
HOSE,NONMETALLIC
3130-05
5815-00-252-2775INTERCHANGEABLE
KEYTOP,KEYBOARD
313005
5920-00-270-5179INTERCHANGEABLE
FUSE,CARTRIDGE
16750231-034
5920-00-280-5066INTERCHANGEABLE
FUSE,CARTRIDGE
5920-00-775-2273INTERCHANGEABLE
FUSE,CARTRIDGE
1560-00-859-7108INTERCHANGEABLE
WINDSHIELD PANEL,AIRCRAFT
3-13000-5
5920-01-474-5150INTERCHANGEABLE
FUSE,CARTRIDGE
430-0124
5920-01-596-5716INTERCHANGEABLE
FUSE,CARTRIDGE,SPEC
313.005
4720-01-611-8480INTERCHANGEABLE
HOSE,NONMETALLIC
313005

Frequently Asked Questions

What is NSN 5920-01-209-1738?

NSN 5920-01-209-1738 is a Fuse,cartridge, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 5920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5920-01-209-1738?

NSN 5920-01-209-1738 has 4 cross-referenced part numbers: MDX5 (Cooper Bussmann, Llc Dba Cooper Industries), 10018550-128 (Us Army Aviation and Missile Command), 3966B-2 (Howell Laboratories Inc Dba Howell Laboratories Inc), 313005 (Littelfuse, Inc.).

What NSN replaces 5920-01-209-1738?

There are 9 known substitutes for 5920-01-209-1738: 4720-00-145-6258, 5815-00-252-2775, 5920-00-270-5179 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3966B-2?

Key specifications for 3966B-2: Circuit Over-Current Interruption Delay Time in Seconds: 5.5 200 PCT OF CURRENT RATING; Features Provided: NONRENEWABLE FUSIBLE ELEMENT; Continuous Current Rating in Amps: 5.000; Maximum Voltage Rating in Volts: 250.0 AC. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-01-209-1738 still in active supply?

NSN 5920-01-209-1738 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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