PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M255Fuse,cartridge

Mersen Usa Ep Corp. Dba Ferraz Shawmut · NSN 5920-00-665-0916 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-665-0916 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-665-0916. Primary manufacturer part number: M255.
Features
  • Fuse,cartridge — FSC 5920
  • Features Provided: NONRENEWABLE FUSIBLE ELEMENT
  • Circuit Over-Current Interruption Delay Time in Seconds: 3.0 500 PCT OF CURRENT RATING
  • Continuous Current Rating in Amps: 0.400
  • Circuit Over-Current Interruption Type: TIME DELAY
  • Overall Diameter: 0.406 INCHES NOMINAL IN
  • Interruption Indicator Method: OPAQUE BODY
  • Material: FIBER CASE
Applications
  • Applications requiring Fiber Case construction
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-00-665-0916, 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 Mersen Usa Ep Corp. Dba Ferraz Shawmut. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5920-00-665-0916
Primary Part NumberM255
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerMersen Usa Ep Corp. Dba Ferraz Shawmut
StatusCANCELLED
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Circuit Over-Current Interruption Delay Time in Seconds3.0 500 PCT OF CURRENT RATING
Continuous Current Rating in Amps0.400
Circuit Over-Current Interruption TypeTIME DELAY
Overall Diameter0.406 INCHES NOMINAL IN
Interruption Indicator MethodOPAQUE BODY
MaterialFIBER CASE
Maximum Voltage Rating in Volts250.0 AC AND 250.0 DC
Body StyleTUBE TYPE
Surface TreatmentNICKEL TERMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-011-2723 INTERCHANGEABLE
Washer,lock
5310-00-176-7897 INTERCHANGEABLE
Nut,plain,castellated,hexagon
5975-00-296-60862854 INTERCHANGEABLE
Box Connector,electrical
Raco, a Division of Hubbell Incorporated(delaware)
6625-00-445-6904 INTERCHANGEABLE
Pad,matching
3110-00-554-5396 INTERCHANGEABLE
Bearing,ball,annular
5910-00-666-7969482648 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
Naval Ship Systems Command
5975-00-681-47203304 INTERCHANGEABLE
Box Connector,electrical
Raco, a Division of Hubbell Incorporated(delaware)
5935-00-687-1686033-0004-0001 INTERCHANGEABLE
Adapter,connector
Te Connectivity Corporation Dba Microdot Products
2530-00-734-2642A619 INTERCHANGEABLE
Link Asy
Am General Llc
5935-00-759-3881 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Cross-Reference Index
Part NumberManufacturer
M255 PRIMARY Mersen Usa Ep Corp. Dba Ferraz Shawmut (USA)
33-04 PRIMARY Cooper Bussmann, Llc Dba Cooper Industries (USA)
FNM4-10 PRIMARY Cooper Bussmann, Llc Dba Cooper Industries (USA)
Related Parts
5310-00-011-2723INTERCHANGEABLE
WASHER,LOCK
5310-00-176-7897INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
5975-00-296-6086INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
2854
6625-00-445-6904INTERCHANGEABLE
PAD,MATCHING
3110-00-554-5396INTERCHANGEABLE
BEARING,BALL,ANNULAR
5910-00-666-7969INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
482648
5975-00-681-4720INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
3304
5935-00-687-1686INTERCHANGEABLE
ADAPTER,CONNECTOR
033-0004-0001
2530-00-734-2642INTERCHANGEABLE
LINK ASY
A619
5935-00-759-3881INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
5330-00-865-6377INTERCHANGEABLE
SEAL,OUTPUT
20616E5269-3304
6145-00-935-5132INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
3304

Frequently Asked Questions

What is NSN 5920-00-665-0916?

NSN 5920-00-665-0916 is a Fuse,cartridge, manufactured by Mersen Usa Ep Corp. Dba Ferraz Shawmut, classified under FSC 5920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5920-00-665-0916?

NSN 5920-00-665-0916 has 3 cross-referenced part numbers: M255 (Mersen Usa Ep Corp. Dba Ferraz Shawmut), 33-04 (Cooper Bussmann, Llc Dba Cooper Industries), FNM4-10 (Cooper Bussmann, Llc Dba Cooper Industries).

What NSN replaces 5920-00-665-0916?

There are 12 known substitutes for 5920-00-665-0916: 5310-00-011-2723, 5310-00-176-7897, 5975-00-296-6086 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M255?

Key specifications for M255: Overall Length: 1.500 INCHES NOMINAL IN; Features Provided: NONRENEWABLE FUSIBLE ELEMENT; Circuit Over-Current Interruption Delay Time in Seconds: 3.0 500 PCT OF CURRENT RATING; Continuous Current Rating in Amps: 0.400. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-00-665-0916 still in active supply?

NSN 5920-00-665-0916 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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