PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

345623AFuseholder,extractor Post

Littelfuse Uk Ltd · NSN 5920-01-349-0012 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-349-0012 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-349-0012. Primary manufacturer part number: 345623A.
Features
  • Fuseholder,extractor Post — FSC 5920
  • Accommodated Fuse Width: 0.203 INCHES NOMINAL IN
  • Bushing Hole Diameter: 0.502 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
  • Fragility Factor: MODERATELY RUGGED
  • Voltage in Volts: 250.0
  • Flatted Side Bushing Hole Length: 0.475 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN
  • Bushing Thread Length: 0.500 INCHES NOMINAL IN
  • Surface Treatment: TIN TERMINAL
Applications
  • Applications requiring Copper Alloy Contact construction
General Description

The Fuseholder,extractor Post, cataloged under National Stock Number 5920-01-349-0012, 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 Littelfuse Uk Ltd. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5920-01-349-0012
Primary Part Number345623A
Item NameFuseholder,extractor Post
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerLittelfuse Uk Ltd
StatusACTIVE
Accommodated Fuse Width0.203 INCHES NOMINAL IN
Bushing Hole Diameter0.502 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Fragility FactorMODERATELY RUGGED
Voltage in Volts250.0
Flatted Side Bushing Hole Length0.475 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN
Bushing Thread Length0.500 INCHES NOMINAL IN
Surface TreatmentTIN TERMINAL
Mounting Hole Quantity1
MaterialCOPPER ALLOY CONTACT
Environmental ProtectionVIBRATION PROOF
Mounting Hole StyleBUSHING MOUNTING
MaterialCOPPER ALLOY TERMINAL
Accommodated Fuse Length0.796 INCHES NOMINAL IN
Bushing Diameter0.500 INCHES NOMINAL IN
Cap Diameter0.650 INCHES NOMINAL IN
Mounting Hole Diameter0.502 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Length From Front Protrusion to Mounting Surface0.450 INCHES NOMINAL IN
Fuse Terminal Type AccommodatedFERRULE
MaterialPLASTIC PHENOLIC BODY
Fuse Accommodation Quantity1
Terminal Type and Quantity2 TAB, SOLDER LUG
Body StyleBUSHING MOUNTED TYPE
Current Carrying Rating in Amps6.3
Surface TreatmentTIN CONTACT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5920-00-031-5181 INTERCHANGEABLE
Fuseholder,extractor Post
5920-00-858-8161 INTERCHANGEABLE
Fuseholder,extractor Post
5920-01-116-8359 INTERCHANGEABLE
Fuseholder,extractor Post
5920-01-296-2173 INTERCHANGEABLE
Fuseholder,extractor Post
5920-01-304-8729 INTERCHANGEABLE
Fuseholder,extractor Post
5920-01-334-8566 INTERCHANGEABLE
Fuseholder,extractor Post
5920-01-341-0724 INTERCHANGEABLE
Fuseholder,extractor Post
5920-01-362-5183 INTERCHANGEABLE
Fuseholder,extractor Post
5920-01-393-2078 INTERCHANGEABLE
Fuseholder,extractor Post
5920-01-412-9162 INTERCHANGEABLE
Fuseholder,extractor Post
Cross-Reference Index
Part NumberManufacturer
345623A Littelfuse Uk Ltd (GBR)
AA55504/2-002B Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA55504/02-002B Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA55504 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
345623 Littelfuse, Inc. (USA)
A-A-55504/2 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
0N373922-1 National Security Agency (USA)
Related Parts
5920-00-031-5181INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
5920-00-858-8161INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
5920-01-116-8359INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
5920-01-296-2173INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
5920-01-304-8729INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
5920-01-334-8566INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
5920-01-341-0724INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
5920-01-362-5183INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
5920-01-393-2078INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
5920-01-412-9162INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST

Frequently Asked Questions

What is NSN 5920-01-349-0012?

NSN 5920-01-349-0012 is a Fuseholder,extractor Post, manufactured by Littelfuse Uk Ltd, classified under FSC 5920 (No Item Name Available). Status: active.

What are the part numbers for NSN 5920-01-349-0012?

NSN 5920-01-349-0012 has 7 cross-referenced part numbers: 345623A (Littelfuse Uk Ltd), AA55504/2-002B (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA55504/02-002B (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA55504 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 345623 (Littelfuse, Inc.) and 2 more.

What NSN replaces 5920-01-349-0012?

There are 10 known substitutes for 5920-01-349-0012: 5920-00-031-5181, 5920-00-858-8161, 5920-01-116-8359 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 345623A?

Key specifications for 345623A: Accommodated Fuse Width: 0.203 INCHES NOMINAL IN; Bushing Hole Diameter: 0.502 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Fragility Factor: MODERATELY RUGGED; Voltage in Volts: 250.0. 26 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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