PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FNM12AMPFuse,cartridge

Cooper Bussmann, Llc Dba Cooper Industries · NSN 5920-01-331-8620 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-331-8620 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-331-8620. Primary manufacturer part number: FNM12AMP.
Features
  • Fuse,cartridge — FSC 5920
  • Body Style: TUBE TYPE
  • Material: FIBER CASE
  • Fragility Factor: MODERATELY DELICATE
  • Continuous Current Rating in Amps: 12.000
  • Features Provided: NONRENEWABLE FUSIBLE ELEMENT
  • Interruption Indicator Method: OPAQUE BODY
  • Circuit Over-Current Interruption Delay Time in Seconds: 12.0 200 PCT OF CURRENT RATING
Applications
  • Applications requiring Fiber Case construction
General Description

The Fuse,cartridge, cataloged under National Stock Number 5920-01-331-8620, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 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
NSN5920-01-331-8620
Primary Part NumberFNM12AMP
Item NameFuse,cartridge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerCooper Bussmann, Llc Dba Cooper Industries
StatusCANCELLED
Body StyleTUBE TYPE
MaterialFIBER CASE
Fragility FactorMODERATELY DELICATE
Continuous Current Rating in Amps12.000
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Interruption Indicator MethodOPAQUE BODY
Circuit Over-Current Interruption Delay Time in Seconds12.0 200 PCT OF CURRENT RATING
MaterialCOPPER OR COPPER ALLOY TERMINAL
Circuit Over-Current Interruption TypeTIME DELAY
Overall Diameter0.402 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
Maximum Voltage Rating in Volts125.0 AC AND 125.0 DC
Test Data Document81349-MIL-F-15160 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Specification/standard Data81349-MIL-F-15160/9 GOVERNMENT SPECIFICATION
Surface TreatmentNICKEL TERMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6680-00-586-6486 INTERCHANGEABLE
Snubber Set,piston
5935-00-904-1280TBF22-22PS INTERCHANGEABLE
Adapter,connector
Itt Cannon Llc
6625-00-908-0358 INTERCHANGEABLE
Testset,electronicc
2920-01-104-554111-2260 INTERCHANGEABLE
Adapter,distributor
Thermo King Corporation Dba Phoenix Global Distirbution.
5930-01-108-6203 INTERCHANGEABLE
Switch,rotary
5998-01-119-8274203002 INTERCHANGEABLE
Circuit Card Assembly
Marine Electric Systems Inc
6150-01-332-893636890-3-3-25-LP INTERCHANGEABLE
Cable Assembly,special Purpose,e
Setra Systems, Inc. Dba Gems Sensors
5920-01-425-2321203002 INTERCHANGEABLE
Fuse,enclosed Link
Littelfuse, Inc.
3010-01-426-02152-03002 INTERCHANGEABLE
Clutch,positive,nonvehicular
Rockford Powertrain Inc Div Powertrain Rockford, Inc.
5985-01-485-467210513-0200-01 INTERCHANGEABLE
Antenna Group
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
Cross-Reference Index
Part NumberManufacturer
FNM12AMP Cooper Bussmann, Llc Dba Cooper Industries (USA)
112260 Memorex Corp Hq (USA)
MIL-PRF-15160/9 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
203002 Compaq Federal Llc (USA)
MIL-F-15160/9 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
F09B125V12A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
29-22241-00 Compaq Federal Llc (USA)
FBN12 Cooper Bussmann, Llc Dba Cooper Industries (USA)
Related Parts
6680-00-586-6486INTERCHANGEABLE
SNUBBER SET,PISTON
5935-00-904-1280INTERCHANGEABLE
ADAPTER,CONNECTOR
TBF22-22PS
6625-00-908-0358INTERCHANGEABLE
TESTSET,ELECTRONICC
2920-01-104-5541INTERCHANGEABLE
ADAPTER,DISTRIBUTOR
11-2260
5930-01-108-6203INTERCHANGEABLE
SWITCH,ROTARY
5998-01-119-8274INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
203002
6150-01-332-8936INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
36890-3-3-25-LP
5920-01-425-2321INTERCHANGEABLE
FUSE,ENCLOSED LINK
203002
3010-01-426-0215INTERCHANGEABLE
CLUTCH,POSITIVE,NONVEHICULAR
2-03002
5985-01-485-4672INTERCHANGEABLE
ANTENNA GROUP
10513-0200-01
4820-01-504-4783INTERCHANGEABLE
VALVE,CHECK
59439A2 R01
5331-01-616-9882INTERCHANGEABLE
O-RING
112260

Frequently Asked Questions

What is NSN 5920-01-331-8620?

NSN 5920-01-331-8620 is a Fuse,cartridge, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5920-01-331-8620?

NSN 5920-01-331-8620 has 8 cross-referenced part numbers: FNM12AMP (Cooper Bussmann, Llc Dba Cooper Industries), 112260 (Memorex Corp Hq), MIL-PRF-15160/9 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 203002 (Compaq Federal Llc), MIL-F-15160/9 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 5920-01-331-8620?

There are 12 known substitutes for 5920-01-331-8620: 6680-00-586-6486, 5935-00-904-1280, 6625-00-908-0358 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FNM12AMP?

Key specifications for FNM12AMP: Body Style: TUBE TYPE; Material: FIBER CASE; Fragility Factor: MODERATELY DELICATE; Continuous Current Rating in Amps: 12.000. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-01-331-8620 still in active supply?

NSN 5920-01-331-8620 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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