PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20321Fuseholder,block

Mersen Usa Ep Corp. Dba Ferraz Shawmut · NSN 5920-01-293-3965 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-293-3965 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-293-3965. Primary manufacturer part number: 20321.
Features
  • Fuseholder,block — FSC 5920
  • Internal Circuit Configuration and Pole Quantity: 2 POLE, MAINLINE, FUSED
  • Center to Center Distance Between Outside Mounting Holes Along Length: 0.500 INCHES NOMINAL IN
  • Body Style: SIDE BARRIER TYPE
  • Terminal Type and Quantity: 2 COMPRESSION
  • Material: COPPER TERMINAL
  • Material: COPPER CONTACT
  • Material: PLASTIC BODY
Applications
  • Applications requiring Copper Terminal construction
General Description

The Fuseholder,block, cataloged under National Stock Number 5920-01-293-3965, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5920-01-293-3965
Primary Part Number20321
Item NameFuseholder,block
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerMersen Usa Ep Corp. Dba Ferraz Shawmut
StatusACTIVE
Internal Circuit Configuration and Pole Quantity2 POLE, MAINLINE, FUSED
Center to Center Distance Between Outside Mounting Holes Along Length0.500 INCHES NOMINAL IN
Body StyleSIDE BARRIER TYPE
Terminal Type and Quantity2 COMPRESSION
MaterialCOPPER TERMINAL
MaterialCOPPER CONTACT
MaterialPLASTIC BODY
Accommodated Fuse Length2.000 INCHES NOMINAL IN
Base Thickness0.500 INCHES NOMINAL IN
Current Carrying Rating in Amps30.0
Mounting Hole Quantity2
Fuse Terminal Type AccommodatedFERRULE
Accommodated Ferrule Diameter0.563 INCHES NOMINAL IN
Mounting Hole StyleIN-LINE ALONG THE LENGTH
Fuse Accommodation Quantity1
Mounting Hole Diameter0.750 INCHES NOMINAL IN
Voltage in Volts250.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-097-317220321 INTERCHANGEABLE
Connector,plug,electrical
Anderson Airmotive Inc
3110-00-156-1916 INTERCHANGEABLE
Bearing,ball,thrust
3040-00-180-5458203-21 INTERCHANGEABLE
Gearshaft,spur
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
6130-00-312-8241M430774-1 INTERCHANGEABLE
Rectifier,metallic
L3 Technologies, Inc. Div Communication Systems-East
6515-00-333-880066-2742 INTERCHANGEABLE
Forceps,dressing
Sklar Corporation Dba Sklar Instruments
6350-00-388-440310300077 INTERCHANGEABLE
Buzzer
Us Army Aviation and Missile Command
5920-00-417-4624 INTERCHANGEABLE
Fuseholder,block
5330-00-924-9040697524A INTERCHANGEABLE
Gasket
Hamilton Sundstrand Corporation
4820-01-075-5091A6792-026-156 INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-075-735207736002156 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
20321 Mersen Usa Ep Corp. Dba Ferraz Shawmut (USA)
AA55168-003 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
20321 Klockner-Moeller Corp (USA)
A-A-55168 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
5935-00-097-3172INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
20321
3110-00-156-1916INTERCHANGEABLE
BEARING,BALL,THRUST
3040-00-180-5458INTERCHANGEABLE
GEARSHAFT,SPUR
203-21
6130-00-312-8241INTERCHANGEABLE
RECTIFIER,METALLIC
M430774-1
6515-00-333-8800INTERCHANGEABLE
FORCEPS,DRESSING
66-2742
6350-00-388-4403INTERCHANGEABLE
BUZZER
10300077
5920-00-417-4624INTERCHANGEABLE
FUSEHOLDER,BLOCK
5330-00-924-9040INTERCHANGEABLE
GASKET
697524A
4820-01-075-5091INTERCHANGEABLE
STEM,FLUID VALVE
A6792-026-156
4820-01-075-7352INTERCHANGEABLE
SEAT,VALVE
07736002156
5998-01-077-6322INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5920-01-138-1764INTERCHANGEABLE
FUSEHOLDER,BLOCK

Frequently Asked Questions

What is NSN 5920-01-293-3965?

NSN 5920-01-293-3965 is a Fuseholder,block, manufactured by Mersen Usa Ep Corp. Dba Ferraz Shawmut, classified under FSC 5920 (No Item Name Available). Status: active.

What are the part numbers for NSN 5920-01-293-3965?

NSN 5920-01-293-3965 has 4 cross-referenced part numbers: 20321 (Mersen Usa Ep Corp. Dba Ferraz Shawmut), AA55168-003 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 20321 (Klockner-Moeller Corp), A-A-55168 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).

What NSN replaces 5920-01-293-3965?

There are 12 known substitutes for 5920-01-293-3965: 5935-00-097-3172, 3110-00-156-1916, 3040-00-180-5458 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20321?

Key specifications for 20321: Internal Circuit Configuration and Pole Quantity: 2 POLE, MAINLINE, FUSED; Center to Center Distance Between Outside Mounting Holes Along Length: 0.500 INCHES NOMINAL IN; Body Style: SIDE BARRIER TYPE; Terminal Type and Quantity: 2 COMPRESSION. 20 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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